Season 1

Select an Episode

 

"The Cage"

 
Episode Number0 Vina, Captain Pike and Number One
 Vina, Captain Pike and Number One
Production Number001 
Season
Stardate 
Original Airdate 
 
Story 
TeleplayGene Roddenberry 
DirectorRobert Butler 
 
Synopsis
Captain Pike and his crew are lured to Talos IV by a race capable of creating powerful illusions.
 
Starring
Jeffrey Hunter (Captain Christopher Pike)
 
Guest Cast
Susan Oliver (Vina)
Leonard Nimoy (Mister Spock)
Majel Barrett (Number One)
John Hoyt (Doctor Phillip Boyce)
Peter Duryea (Lt. Jose Tyler)
Laurel Goodwin (Yeoman Colt)
Meg Wylie (The Keeper)
 
Notes
This unaired pilot episode was rejected by NBC for being "too cerebral". This led to the creation of a second pilot, "Where No Man Has Gone Before".
At the time of production, this original pilot was also known as "The Menagerie." However, as the series proper has a two-part story of the same title, this episode is usually referred to as "The Cage." The two-part episide "The Menagerie" features scenes from this pilot episode.
Number One's name is never given, but her rank is Lieutenant.
It seems odd that Number One is Pike's first officer when Captain Pike doesn't like females on the bridge. He mentions more than once that Yeoman Colt is to leave the bridge unless she's there for a report because she is a woman.
 

 

"The Man Trap"

 
Episode Number1 McCoy protects 'Nancy' from Kirk
 McCoy protects 'Nancy' from Kirk
Production Number006 
Season
Stardate1531.1  (Calendar Year 2264) 
Original Airdate9/8/1966 
 
Story 
TeleplayGeorge Clayton Johnson 
DirectorMarc Daniels 
 
Synopsis
A shape-shifting, salt-craving creature terrorizes the crew of Enterprise.
 
Starring
William Shatner (Captain James T. Kirk)
Leonard Nimoy (Lt. Commander Spock)
 
Guest Cast
Jeanne Bal (Nancy Crater)
Alfred Ryder (Prof. Robert Crater)
DeForest Kelley (Dr. Leonard H. McCoy)
Grace Lee Whitney (Yeoman Janice Rand)
George Takei (Lt. Hikaru Sulu)
Nichelle Nichols (Lt. Uhura)
Bruce Watson (Crewman Darnell)
Michael Zaslow (Crewman Green)
Vince Howard (Crewman)
Francine Pyne (Nancy III)
Eddie Paskey (Lt. Lesley)
 
Notes
It seemed really unnecessary to kill the pitiful creature.
After the creature boards the Enterprise in Green disguise, he sees Yeoman Rand carrying a lunch tray, and nibbling from it; when "Green" reaches for the salt, she slaps him away with a "Who do you think you are?!" She continues to the bio-lab and then gives the tray to Sulu! He should have slapped her hand for eating from his plate.
This is the first episode McCoy speaks the infamous "He's dead, Jim" -- referring to Crewman Darnell, the first crewman to die under Kirk's command of the Enterprise.
Spock is the only character to appear in both the unaired pilot ("The Cage") and the series.
This is the first appearance of Dr. McCoy, Lt. Sulu, Lt. Uhura, and Yeoman Rand.
This is the first appearance of extra Lt. Lesley, who is uncredited in this episode and doesn't receive a name until "The Alternative Factor".
Only William Shatner and Leonard Nimoy are listed as the main cast in the opening credits. James Doohan, George Takei, Nichelle Nichols (and Walter Koenig, Season 2+) were listed as co-stars in the end-credits throughout the series. DeForest Kelley is listed in the end-credits in this season, but becomes a regular cast member in Season 2.
 

 

"Charlie X"

 
Episode Number2 Charlie meets his first woman, Janice Rand
 Charlie meets his first woman, Janice Rand
Production Number008 
Season
Stardate1533.6 
Original Airdate9/15/1966 
 
StoryGene Roddenberry 
TeleplayD.C. Fontana 
DirectorLawrence Dobkin 
 
Synopsis
17-year old Charlie Evans, the lone survivor of a colony expedition that crashed on the planet Thasus 14 years ago, comes aboard the U.S.S. Enterprise from the science vessel S.S. Antares. When Captain Ramart of the Antares contacts Kirk about Charlie, the S. S. Antares is suddenly destroyed and strange events begin occurring whenever Charlie is angered.
 
Guest Cast
Robert Walker (Charles Evans)
DeForest Kelley (Dr. Leonard H. McCoy)
Grace Lee Whitney (Yeoman Janice Rand)
Nichelle Nichols (Lt. Uhura)
Charles Stewart (Captain Ramart)
Dallas Mitchell (Lt. Tom Nellis)
Don Eitner (Navigator)
John Lindesmith (Helmsman)
Patricia McNulty (Yeoman Tina Lawton)
John Bellah (Dr. Harrison)
Garland Thompson (Technician Wilson)
Abraham Sofaer (The Thasian)
Robert Herron (Sam)
 
Notes
Kirk states that there are 428 people on board the Enterprise.
Yeoman Rand is the first woman that Charlie has ever seen, and he develops a crush on her.
This episode takes place on Thanksgiving day on Earth; Charlie turns the meatloaves into turkeys.
 

 

"Where No Man Has Gone Before"

 
Episode Number3 Kirk is forced to fight his friend Gary Mitchell
 Kirk is forced to fight his friend Gary Mitchell
Production Number002 
Season
Stardate1312.4 
Original Airdate9/22/1966 
 
Story 
TeleplaySamuel A. Peeples 
DirectorJames Goldstone 
 
Synopsis
The Enterprise encounters a record-marker left behind by the S.S. Valiant 200 years ago as it tried to go through an energy barrier at the rim of the galaxy. The Enterprise sets course to the rim of the galaxy, where the energy barrier damages the Enterprise's engines and causes a strange behavioral change in Kirk's close friend and Enterprise First Officer, Gary Mitchell, who has gained incredible extrasensory powers and god-like abilities.
 
Guest Cast
Gary Lockwood (Lt. Cmdr. Gary Mitchell)
Sally Kellerman (Dr. Elizabeth Dehner)
George Takei (Lt. Hikaru Sulu)
James Doohan (Lt. Cmdr. Montgomery Scott)
Lloyd Haynes (Lt. Lloyd Alden)
Andrea Dromm (Yeoman Smith)
Paul Carr (Lt. Lee Kelso)
Paul Fix (Dr. Mark Piper)
 
Notes
This episode was the second pilot, the first episode produced (not counting the un-aired pilot). It was created nearly a year before it aired and there are numerous differences between this episode and the others, including the ship model, the uniforms, and Spock's ears and eyebrows. For some reason, it was the 3rd episode aired on NBC.
Gary Mitchell and Elizabeth Dehner were chosen because they had the highest ESP ratings on the ship.
This is the first appearance of Chief Engineer Montgomery Scott.
Sulu is the astro-sciences department head in this episode.
Mitchell kills helmsman Lt. Lee Kelso. (He is the first crewman to die if you go by production order.)
This episode displays some incredibly sexist behavior. Mitchell, the ship's First Officer, makes a pass at Dr. Dehner and when she rebukes him, he calls her a "walking freezer unit," which he and Kelso find funny. I guess this behavior was acceptable in the 60's, but it seems very "un-Starfleet".
The Enterprise is at the rim of the Galaxy in this episode. That would be approximately 25,000 light years from Earth. Later information about the capabilites of the starships would render this trip impossible -- it would take 25 years for the Enterprise to travel this distance, and another 25 to return.
When Mitchell creates Kirk's tombstone, it is labeled JAMES R. KIRK. It will later be established that Kirk's middle initial is T. (Apparently, Gary does not know Kirk's middle name.)
 

 

"The Naked Time"

 
Episode Number4 Lt. Sulu threatens the bridge with a fencing foil
 Lt. Sulu threatens the bridge with a fencing foil
Production Number007 
Season
Stardate1704.2 
Original Airdate9/29/1966 
 
Story 
TeleplayJohn D.F. Black 
DirectorMarc Daniels 
 
Synopsis
The Enterprise is sent to planet Psi 2000 to pick up a scientific team and to observe the dying planet in its final stages. A member of a landing party investigating the ruins on the collapsing planet contracts an unknown infection and returns it to the Enterprise, where it begins to spread rapidly among the crew. Dr. McCoy works to find an antidote before the crew goes out of their minds.
 
Guest Cast
Stewart Moss (Lt. Joe Tormolen)
Majel Barrett (Nurse Christine Chapel)
Bruce Hyde (Lt. Kevin T. Riley)
DeForest Kelley (Dr. Leonard H. McCoy)
Grace Lee Whitney (Yeoman Janice Rand)
George Takei (Lt. Hikaru Sulu)
James Doohan (Lt. Cmdr. Montgomery Scott)
Nichelle Nichols (Lt. Uhura)
William Knight (Amorous Crewman)
John Bellah ([Dr. Harrison)
Frank da Vinci (Lt. Brent)
 
Notes
After Riley shuts down the engines, Scotty has to start them up in less than standard 30 minutes to prevent the Enterprise from crashing into Psi 2000. The new procedure that he and Spock creates starts the engines successfully, but it sends them backwards in time.
This is the first appearance of Nurse Chapel, played by Gene Roddenberry's wife, Majel Barrett. Chapel has a crush on Spock. Majet Barrett previously played "Number One" in the unaired pilot, "The Cage". She would later play the voice of the Starfleet computers and Lwaxana Troi on Star Trek: The Next Generation.
This is the first episode Spock uses the Vulcan Nerve Pinch, which he uses on Sulu.
When Spock sends Riley to Sickbay, he orders Uhura to take the Navigator position.
Star Trek: The Next Generation will pay homage to this episode in "The Naked Now".
 

 

"The Enemy Within"

 
Episode Number5 The evil captain Kirk attacks Janice
 The evil captain Kirk attacks Janice
Production Number005 
Season
Stardate1672.1 
Original Airdate10/6/1966 
 
Story 
TeleplayRichard Matheson 
DirectorLeo Penin 
 
Synopsis
While orbiting the planet Alpha 177, a transporter malfunction creates a duplicate of Kirk -- one good and honorable, the other evil and aggressive. The Evil Kirk runs amok on his ship, committing violent acts, including the attempted assault of Yeoman Rand. As the two Kirks fight for control of the ship, Sulu and the landing party are stranded on the planet, its subfreezing night temperatures meaning certain death.
 
Guest Cast
DeForest Kelley (Dr. Leonard H. McCoy)
Grace Lee Whitney (Yeoman Janice Rand)
George Takei (Lt. Hikaru Sulu)
James Doohan (Lt. Cmdr. Montgomery Scott)
Edward Madden (Technician Fisher)
Garland Thompson (Technician Wilson)
Jim Goodwin (Lt. John Farrell)
 
Notes
The landing party could have been rescued with a shuttle; perhaps the Enterprise did not have any shuttles at this time.
 

 

"Mudd's Women"

 
Episode Number6 Harcourt Fenton 'Harry' Mudd
 Harcourt Fenton 'Harry' Mudd
Production Number004 
Season
Stardate1329.1 
Original Airdate10/13/1966 
 
StoryGene Roddenberry 
TeleplayStephen Kandel 
DirectorHarvey Hart 
 
Synopsis
The Enterprise rescues con artist Harry Mudd and his beautiful female cargo. In pursuit of Mudd's ship, the Enterprise has burned out its lithium crystals, which power the starship's engines, and Kirk orders them to proceed as quickly as possible to the nearest lithium mining planet, Rigel XII. Mudd makes a deal with the three miners to deliver his three women to be their wives.
 
Guest Cast
Roger C. Carmel (Harcourt Fenton "Harry" Mudd)
Karen Steele (Eve McHuron)
DeForest Kelley (Dr. Leonard H. McCoy)
Maggie Thrett (Ruth Bonaventure)
Susan Denberg (Magda Kovas)
James Doohan (Lt. Cmdr. Montgomery Scott)
George Takei (Lt. Hikaru Sulu)
Jim Goodwin (Lt. John Farrell)
Nichelle Nichols (Lt. Uhura)
Gene Dynarski (Ben Childress)
Jon Kowal (Herm Gossett)
Seamon Glass (Benton)
Jerry Foxworth (Security Guard)
 
Notes
Harry Mudd will later return in "I, Mudd".
The women were "ugly", made attractive by the illegal Venus drug. They revert to their former selves if they go off the drugs. However, when Eve goes off the drug, Kirk tricks her with a gelatin pill and she becomes pretty because she believes she is (which is well-meaning, but absolutely ludicrous).
For some unknown reason, Uhura is wearing a yellow uniform instead of her standard red uniform.
 

 

"What Are Little Girls Made Of?"

 
Episode Number7 Nurse Chapel is reunited with Dr. Korby
 Nurse Chapel is reunited with Dr. Korby
Production Number010 
Season
Stardate2712.4 
Original Airdate10/20/1966 
 
Story 
TeleplayRobert Bloch 
DirectorJames Goldstone 
 
Synopsis
The Enterprise travels to Exo III in search of exobiologist Dr. Korby, fiancé of Nurse Chapel. Using equipment left behind by "The Old Ones," the extinct natives of Exo III, Korby has constructed androids who look and act like humans and he intends to replace key people in the Federation with androids to integrate the machines into other worlds -- beginning with Captain Kirk.
 
Guest Cast
Michael Strong (Dr. Roger Korby)
Sherry Jackson (Andrea)
Ted Cassidy (Ruk)
Majel Barrett (Nurse Christine Chapel)
Nichelle Nichols (Lt. Uhura)
Harry Basch (Dr. Brown)
Vince Deadrick (Crewman Mathews)
Budd Albright (Crewman Rayburn)
 
Notes
Korby has been missing for 5 years. Christine Chapel gave up a promising career in biology to serve on a starship that might one day find Korby. Chapel decides to stay with the ship at the end of the episode.
Ruk is the last remaining android built by the Old Ones. The Old Ones became afraid of their machines and began to deactivate them. The machines overcame their programming and killed their inferior creators.
 

 

"Miri"

 
Episode Number8 Dr. McCoy injects himself with the untested cure
 Dr. McCoy injects himself with the untested cure
Production Number012 
Season
Stardate2713.5 
Original Airdate10/27/1966 
 
Story 
TeleplayAdrian Spies 
DirectorVincent McEveety 
 
Synopsis
The U.S.S. Enterprise answers an old distress signal to find an unnamed planet that is almost an exact duplicate of Earth in the 1960s. A landing party beams down and discovers that 300 years before, the natives of the planet conducted experiments to prolong life, but had instead created a deadly virus, which killed all adults by rapid aging and madness. In children, the virus slowed the natural aging process greatly, leaving them in a state of prepubescence for centuries.
 
Guest Cast
Kim Darby (Miri)
Michael J. Pollard (Jahn)
DeForest Kelley (Dr. Leonard H. McCoy)
Grace Lee Whitney (Yeoman Janice Rand)
Keith Taylor (Jahn's Friend)
Ed McCready (Boy Creature)
Kellie Flanagan (Blonde Girl)
Steven McEveety (Redheaded Boy)
David Ross (Lt. Galloway)
Jim Goodwin (Lt. John Farrell)
John Megna (Little Boy)
 
Notes
 

 

"Dagger of the Mind"

 
Episode Number9 Helen Noel and Kirk test the neural neutralizer
 Helen Noel and Kirk test the neural neutralizer
Production Number011 
Season
Stardate2715.1 
Original Airdate11/3/1966 
 
Story 
TeleplayS. Bar-David 
DirectorVincent McEveety 
 
Synopsis
Kirk and Dr. Helen Noel, the ship's psychiatrist, tour the Tantalus Penal Colony as the Enterprise delivers supplies. When Dr. Simon van Gelder of the psychiatric staff escapes to the U.S.S. Enterprise exhibiting signs of manic insanity, an enraged McCoy insists that Kirk investigate the colony. They discover that the Colony director, Dr. Tristan Adams, has been using a brainwashing device, the neural neutralizer, to control not only the colony's inmates, but his staff as well.
 
Guest Cast
DeForest Kelley (Dr. Leonard H. McCoy)
James Gregory (Dr. Tristan Adams)
Morgan Woodward (Dr. Simon van Gelder)
Marianna Hill (Dr. Helen Noel)
Nichelle Nichols (Lt. Uhura)
Susanne Wasson (Lethe)
John Arndt (First Crewman)
Larry Anthony (Ensign Berkeley)
Ed McCready (Inmate)
Eli Behar (Therapist)
 
Notes
This is the first appearance of the Vulcan mind meld.
 

 

"The Corbomite Maneuver"

 
Episode Number10 The crew awaits the Fesarius' response
 The crew awaits the Fesarius' response
Production Number003 
Season
Stardate1512.2 
Original Airdate11/10/1966 
 
Story 
TeleplayJerry Sohl 
DirectorJoseph Sargent 
 
Synopsis
While exploring an uncharted region of space, the U.S.S. Enterprise comes upon an alien space buoy, warning ships away and blocking the starship's path. Kirk's orders the phasers to destroy the buoy but immediately an alien ship, the I.S.S. Fesarius, shaped like a large, glowing crystal traps the starship. The Fesarius captain Balok tells Kirk that the Enterprise has trespassed and committed hostile actions, and therefore, must be destroyed. Employing a trick from the Earth game of poker, Kirk tries a desperate bluff by convincing Balok that if the Enterprise is fired upon, the "corbomite" in the starship's hull will self-destruct and destroy both ships.
 
Guest Cast
Anthony Call (Lt. Dave Bailey)
Clint Howard (Balok)
DeForest Kelley (Dr. Leonard H. McCoy)
Grace Lee Whitney (Yeoman Janice Rand)
George Takei (Lt. Hikaru Sulu)
James Doohan (Lt. Cmdr. Montgomery Scott)
Nichelle Nichols (Lt. Uhura)
 
Notes
McCoy gives Kirk a physical and then puts him on a salad diet.
This episode moves along at a very slow pace; The Enterprise does not destroy the bouy until nearly halfway through the episode.
Bailey remains behind with Balok as part of an exchange program so that Balok can learn more about the Federation, at Kirk's suggestion for a volunteer. Bailey seems an odd choice, since the stress of the [not very stressful] encounter rendered him unable to perform his duties.
Captain Kirk announces the ship as the United Earth Ship Enterprise.
 

 

"The Menagerie, Part I"

 
Episode Number11 Captain Christopher Pike
 Captain Christopher Pike
Production Number016 
Season
Stardate3012.4 
Original Airdate11/17/1966 
 
Story 
TeleplayGene Roddenberry 
DirectorMarc Daniels 
 
Synopsis
The U.S.S. Enterprise and her crew are diverted by a signal from Christopher Pike, the former captain of the U.S.S. Enterprise, to Starbase 11. When they arrive, they find Captain Christopher Pike severely crippled and paralyzed by radiation burns. Unbeknownst to Captain Kirk, Spock beams himself and Pike to the ship and locks the ship's controls on a course set for Talos IV -- a planet that Starfleet regulations has deemed absolutely off-limits to all vessels. Forced by the extreme actions of the Vulcan first officer, Kirk and Commodore Mendez convene a court-martial against Spock.
 
Guest Cast
Jeffrey Hunter (Capt. Christopher Pike)*
Susan Oliver (Vina)*
Malachi Throne (Commodore Jose I. Mendez)
M. Leigh Hudec (Number One)*
Peter Duryea (Lt. Jose Tyler)*
John Hoyt (Dr. Philip Boyce)*
Adam Roarke (C.P.O. Garrison)*
DeForest Kelley (Dr. Leonard H. McCoy)
James Doohan (Lt. Cmdr. Montgomery Scott)
Nichelle Nichols (Lt. Uhura)
Sean Kenney (Disabled Christopher Pike)
Hagan Beggs (Lieutenant Hansen)
Julie Parrish (Miss Piper)
 
Notes
*These characters appeared in footage from the original series pilot "The Cage" as the visual evidence of Pike's early mission.
During this episode, and continued in Part 2, the court watches the entire episode of "The Cage".
The events depicted in "The Cage" occurred 13 years ago.
M. Leigh Hudec is Majel Barrett.
Starfleet Command's General Order number 7 prohibits contact with Talos IV, under penalty of death.
 

 

"The Menagerie, Part II"

 
Episode Number12 The Talosians offer a new life for Pike
 The Talosians offer a new life for Pike
Production Number016 
Season
Stardate3013.1 
Original Airdate11/24/1966 
 
Story 
TeleplayGene Roddenberry 
DirectorMarc Daniels 
 
Synopsis
During the proceedings, from an unknown source, they watch the events that transpired when Captain Pike was in command of the U.S.S. Enterprise. They are shown Pike's initial contact with the Talosians, a race of beings eager to study human beings in their natural state, and who can provide illusions to make things appear exactly as they would like. As the Enterprise arrives at Talos, Commodore Mendez disappears and the Talosian Keeper tells Kirk that the Mendez that accompanied him in the shuttle and the trial was an illusion projected from Talos. The Keeper offers Captain Pike a life with them, complete with an illusion of health to free him from the limitations of his body. Kirk allows Pike to beam down to Talos IV and all charges against Spock are dropped.
 
Guest Cast
Jeffrey Hunter (Capt. Christopher Pike)*
Susan Oliver (Vina)*
Malachi Throne (Commodore Jose I. Mendez)
M. Leigh Hudec (Number One)*
Peter Duryea (Lt. Jose Tyler)*
John Hoyt (Dr. Philip Boyce)*
Laurel Goodwin (Yeoman J. M. Colt)*
Adam Roarke (C.P.O. Garrison)*
DeForest Kelley (Dr. Leonard H. McCoy)
James Doohan (Lt. Cmdr. Montgomery Scott)
Nichelle Nichols (Lt. Uhura)
Sean Kenney (Disabled Christopher Pike)
Hagan Beggs (Lieutenant Hansen)
Meg Wyllie (The Keeper)
 
Notes
*These characters appeared in footage from the pilot "The Cage" as the visual evidence of Pike's early mission.
 

 

"The Conscience of the King"

 
Episode Number13 Kirk meets Anton and Lenore Karidian
 Kirk meets Anton and Lenore Karidian
Production Number013 
Season
Stardate2817.6 
Original Airdate12/8/1966 
 
Story 
TeleplayBarry Trivers 
DirectorGerd Oswald 
 
Synopsis
Kirk is contacted by Dr. Leighton, a friend from the Tarsus IV colony years ago, who believes that Kodos the Executioner -- the militant dictator who executed half of the people on the colony -- is at large once more in the guise of touring Shakespearean actor Karidian.
 
Guest Cast
Arnold Moss (Anton Karidian)
Barbara Anderson (Lenore Karidian)
DeForest Kelley (Dr. Leonard H. McCoy)
Grace Lee Whitney (Yeoman Janice Rand)
Nichelle Nichols (Lt. Uhura)
William Sargent (Dr. Thomas Leighton)
Natalie Norwick (Martha Leighton)
David Troy (Lt. Larry Matson)
Karl Bruck (King Duncan)
Marc Adams (Hamlet)
Bruce Hyde (Lt. Kevin T. Riley)
 
Notes
Leighton, Kirk and Riley are the only remaining three (of only nine people) who actually saw Kodos. Spock discovers the other six all died when the Karidian Players were somewhere near. Riley's parents were killed on Tarsus IV by Kodos.
Lenore is actually the killer. She killed Leighton, then tried to kill Riley.
When Lenore tries to kill Kirk with a phaser, Anton moves to protect him and she kills her father.
In the rec room, Uhura plays Spock's lute and sings a song to Riley, who is bored and alone in the engine room.
 

 

"Balance of Terror"

 
Episode Number14 The Romulan Commander
 The Romulan Commander
Production Number009 
Season
Stardate1709.1 
Original Airdate12/15/1966 
 
Story 
TeleplayPaul Schneider 
DirectorVincent McEveety 
 
Synopsis
Responding to distress calls from border outposts along the Neutral Zone between the Federation and the Romulan Star Empire, Kirk and the crew receives a final message from a Federation station reporting an attack from an invisible ship, now running at full speed towards home. The U.S.S. Enterprise pursues the warbird, hampered by the fact that the Romulans have constructed an invisibility screen which shields them from view. After every attempt to lose the Enterprise fails, the Romulan Commander is forced to turn and fight. Both ships are damaged and rather than let himself and his ship be taken prisoner, the Romulan Commander self-destructs the warbird.
 
Guest Cast
Mark Lenard (Romulan Commander)
Paul Comi (Lt. Andrew Stiles)
Lawrence Montaigne (Decius)
DeForest Kelley (Dr. Leonard H. McCoy)
Grace Lee Whitney (Yeoman Janice Rand)
George Takei (Lt. Hikaru Sulu)
James Doohan (Lt. Cmdr. Montgomery Scott)
Nichelle Nichols (Lt. Uhura)
Stephen Mines (Lt. Robert Tomlinson)
Barbara Baldavin (Specialist Angela Martine)
Garry Walberg (Commander Hansen)
John Warburton (Centurion)
 
Notes
This is the first appearance of the Romulans, who look very much like Vulcans. Spock deduces that they must be an offshoot of the Vulcans, from the time when they were aggressive and savage.
The Neutral Zone was established 100 years prior, after the Earth-Romulan War. They had never seen a Romulan until now.
The Federation built outposts along the Neutral Zone, constructed on asteroids.
The Captain was in the middle of a wedding ceremony between Tomlinson and Martine when the ship went to red alert. Tomlinson died during the attack.
Mark Lenard will later play Spock's father Sarek in the episode "Journey to Babel".
This is the last appearance of Janice Rand. She will return to the Enterprise in Star Trek: The Motion Picture. (Apparently, Grace Lee Whitney was assaulted on the studio lot by a Star Trek executive. She didn't report the attack, but she was soon fired from the series.)
 

 

"Shore Leave"

 
Episode Number15 A samurai warrior attacks Sulu
 A samurai warrior attacks Sulu
Production Number017 
Season
Stardate3025.3 
Original Airdate12/29/1966 
 
Story 
TeleplayTheodore Sturgeon 
DirectorRobert Sparr 
 
Synopsis
A U.S.S. Enterprise landing party beams down to an uncharted planet. The planet seems like a perfect candidate for shore leave with its "Earth-type" characteristics. McCoy's first encounter on the new world is with a life-sized white rabbit in a waistcoat, being chased by a little girl. Kirk beams down himself to find his old rival from his academy days, Finnegan. While trying to catch him, Kirk meets Ruth, an old girlfriend. Elsewhere, Sulu is attacked by a Samurai Warrior while others are chased by tigers and aircraft. As the perils become more and more deadly, Kirk and Spock realize that their thoughts are somehow coming to life around them.
 
Guest Cast
Emily Banks (Yeoman Tonia Barrows)
Oliver McGowan (Caretaker)
Perry Lopez (Lt. Esteban Rodriguez)
DeForest Kelley (Dr. Leonard H. McCoy)
George Takei (Lt. Hikaru Sulu)
Bruce Mars (Finnegan)
Barbara Baldavin (Specialist Angela Martine/Teller)
Nichelle Nichols (Lt. Uhura)
Marcia Brown (Alice)
Sebastian Tom (Samurai Warrior)
Shirley Bonne (Ruth)
 
Notes
Barbara Baldavin played Angela Martine in the previous episode, but was cast as Mary Teller in this episode. The mistake was discovered halfway through filming, which is why Kirk calls her "Teller" near the beginning and Rodriguez calls her "Angela" near the end.
Kirk's shirt is ripped fighting with his annoying Finnegan.
 

 

"The Galileo Seven"

 
Episode Number16 Spock commands the shuttle Galileo
 Spock commands the shuttle Galileo
Production Number014 
Season
Stardate2821.5 
Original Airdate1/5/1967 
 
StoryOliver Crawford 
TeleplayOliver Crawford and S. Bar-David 
DirectorRobert Gist 
 
Synopsis
On its way to deliver medical supplies to plague-ridden Makus III, the U.S.S. Enterprise passes Murasaki 312. Since they are under Starfleet orders to inspect galactic phenomena such as this quasar-like star group, Spock, McCoy, Scott and four specialists take the shuttlecraft Galileo for a closer look. Unexpectedly, the Galileo is pulled off course and crashes on the planet Taurus II in the center of the Murasake phenomenon. Between attacks by the giant, hostile inhabitants and quarrels among themselves, the crew attempts to repair the shuttle and get off the planet.
 
Guest Cast
Don Marshall (Lt. Boma)
DeForest Kelley (Dr. Leonard H. McCoy)
James Doohan (Lt. Cmdr. Montgomery Scott)
George Takei (Lt. Hikaru Sulu)
Nichelle Nichols (Lt. Uhura)
John Crawford (High Commissioner Ferris)
Peter Marko (Lt. Gaetano)
Phyllis Douglas (Yeoman Mears)
Rees Vaughn (Lt. Latimer)
Grant Woods (Lt. Kelowitz)
Buck Maffei (Creature)
David Ross (Transporter Chief)
 
Notes
With a rank of [Lt.] Commander and many years in Starfleet, it seems odd that this is Spock's first command mission, which he handles poorly until the end.
 

 

"The Squire of Gothos"

 
Episode Number17 Squire Trelane summons Uhura and Ross
 Squire Trelane summons Uhura and Ross
Production Number018 
Season
Stardate2124.5 
Original Airdate1/12/1967 
 
Story 
TeleplayPaul Schneider 
DirectorDon McDougall 
 
Synopsis
The U.S.S. Enterprise must cross an empty sector of space on their way to deliver supplies to colony Beta VI. In this space, they find an uncharted planet whose presence can't be explained. After Kirk and Sulu suddenly disappear, Spock orders McCoy and geophysicist Lt. Karl Jaeger to the planet's surface to begin a search. They find Trelane, a humanoid with tremendous psionic powers and a passion for Earth's 18th-century military history, and it was he who kidnapped Kirk and Sulu, wanting to add them to his arena of the Napoleonic era that he has created.
 
Guest Cast
William Campbell (Trelane)
Richard Carlyle (Lt. Karl Jaeger)
DeForest Kelley (Dr. Leonard H. McCoy)
James Doohan (Lt. Cmdr. Montgomery Scott)
Nichelle Nichols (Lt. Uhura)
George Takei (Lt. Hikaru Sulu)
Michael Barrier (Lt. Vincent DeSalle)
Venita Wolf (Yeoman Teresa Ross)
 
Notes
 

 

"Arena"

 
Episode Number18 The Gorn captain
 The Gorn captain
Production Number019 
Season
Stardate3045.6 
Original Airdate1/19/1967 
 
StoryFredric Brown 
TeleplayGene L. Coon 
DirectorJoseph Pevney 
 
Synopsis
The U.S.S. Enterprise is in pursuit of an unknown alien ship which has destroyed a Starfleet base on Cestus III. In an uncharted area of space, both the alien ship and the Enterprise are caught by an advanced race called Metrons. The Metrons are angry at the two ships for trespassing into their space and believe that physical combat is the answer to finding justice. They transport Kirk and the alien captain, a lizard-like creature called a Gorn, to an uninhabited asteroid to fight to the death. The Metrons promise that the victor and his ship will be set free, while the loser will be destroyed, along with his ship and crew.
 
Guest Cast
DeForest Kelley (Dr. Leonard H. McCoy)
James Doohan (Lt. Cmdr. Montgomery Scott)
Nichelle Nichols (Lt. Uhura)
George Takei (Lt. Hikaru Sulu)
Jerry Ayres (Lt. O'Herlihy)
Grant Woods (Lt. Kelowitz)
Tom Troupe (Lt. Harold)
James Farley (Lt. Cmdr. Lang)
Carole Shelyne (Metron)
Sean Kenney (Lt. DePaul)
 
Notes
Lt. Harold was the only survivor of the Cestus III massacre. After the landing party beamed down, O'Herlihy and Lang were also killed.
 

 

"Tomorrow is Yesterday"

 
Episode Number19 Kirk introduces Christopher to Spock
 Kirk introduces Christopher to Spock
Production Number021 
Season
Stardate3113.2 
Original Airdate1/26/1967 
 
Story 
TeleplayD.C. Fontana 
DirectorMichael O'Herlihy 
 
Synopsis
When the U.S.S. Enterprise is thrown into a time warp by a black star, it ends up orbiting Earth in the 20th century. A jet is dispatched to bring the "UFO" down and the plane is accidentally destroyed by the starship's tractor beam, forcing Kirk to beam the pilot, John Christopher, aboard.
 
Guest Cast
Roger Perry (Capt. John Christopher)
DeForest Kelley (Dr. Leonard H. McCoy)
Hal Lynch (Air Police Sergeant)
Richard Merrifield (Technician Webb)
John Winston (Lt. Kyle)
Ed Peck (Col. Fellini)
James Doohan (Lt. Cmdr. Montgomery Scott)
George Takei (Lt. Hikaru Sulu)
Nichelle Nichols (Lt. Uhura)
Mark Dempsey (Air Force Captain)
Jim Spencer (Air Policeman)
Sherri Townsend (Crew Woman)
 
Notes
Kirk tells Christopher that there are 12 starships like Enterprise, under the authority of the United Earth Space Probe Agency.
Kirk introduces Spock to Christopher as his "First Officer, Lieutenant Commander Spock" though he clearly wears the uniform of a Commander.
The computer was upgraded on Cygnet XIV, a female dominated world. They gave the computer a sexy personality. It calls the Captain "dear", speaks seductively, and has the annoying tendencies to giggle and pout. (Apparently, women can't make professional computer systems!)
 

 

"Court Martial"

 
Episode Number20 Kirk is sworn in during his court martial
 Kirk is sworn in during his court martial
Production Number015 
Season
Stardate2947.3 
Original Airdate2/2/1967 
 
StoryDon M. Mankiewicz 
TeleplayDon M. Mankiewicz and Stephen W. Carabatsos 
DirectorMarc Daniels 
 
Synopsis
When the U.S.S. Enterprise puts in at Starbase 11 for repairs caused in an ion storm, Kirk gives his report of the circumstances of Lieutenant Commander Ben Finney's death to Commodore Stone. All goes well until Spock arrives with the computer visual tape of the bridge during the crisis. Spock tries to warn Kirk about what is on the tape, but the Commodore takes it and plays it. The computer record shows that Kirk jettisoned the ion pod with Finney still inside.
 
Guest Cast
Percy Rodriguez (Commodore Stone)
Elisha Cook (Samuel T. Cogley)
Joan Marshall (Lt. Areel Shaw)
DeForest Kelley (Dr. Leonard H. McCoy)
Nichelle Nichols (Lt. Uhura)
Richard Webb (Lt. Commander Benjamin Finney)
Hagan Beggs (Lt. Hansen)
Winston DeLugo (Timothy)
Alice Rawlings (Jame Finney)
Nancy Wong (Personnel Ensign)
Bart Conrad (Captain Krasnowsky)
William Meader (Commodore Lindstrom)
Reginald Lal Singh (Captain Chandra)
 
Notes
Finney and Kirk were friends at one time; Finney's daughter Jamie was named after Kirk. They were stationed on the U.S.S. Republic NCC-1371 together. Then Ensign Kirk discovered that Lt. Finney had left open a switch on the atomic reactor, which could have caused an explosion. Kirk logged the incident and Finney was reprimanded and moved to the bottom of the promotion list. He never forgave Kirk. Finney was the Enterprise's records officer. He changed the computer records and faked his death because he was bitter over never becoming Captain and commanding officer of the Enterprise.
The computer identifies Spock's rank as Lieutenant Commander. (Kirk also referred to him as such in the previous episode "Tomorrow is Yesterday".)
During "The Menagerie", Kirk states that no starships can create detailed records such as the video playback provided by the Talosians. However, in this episode they have detailed records of the ion storm, which can even zoom into Kirk's button presses.
Spock proves that there is something wrong with the computer because he is able to beat it at chess 4 times in a row.
Kirk states that the computer can hear sounds. Using a booster, they can increase it on the order of "one to the fourth power". 14=1, which would render the sound the same.
 

 

"The Return of the Archons"

 
Episode Number21 Kirk and Spock destroy the computer Landru
 Kirk and Spock destroy the computer Landru
Production Number022 
Season
Stardate3156.2 
Original Airdate2/9/1967 
 
StoryGene Roddenberry 
TeleplayBoris Sobelman 
DirectorJoseph Pevney 
 
Synopsis
The U.S.S. Enterprise is investigating Beta III, where the U.S.S. Archon disappeared over 100 years before. When the landing party exhibits strange behavior, Kirk sends another party down to investigate. They find the culture on Beta III is quiescent, with no creative tendencies. The entire culture, known as "The Body", is controlled by a group of lawgivers, who are in turn controlled by the omniscient Landru.
 
Guest Cast
Harry Townes (Reger)
Torin Thatcher (Marplon)
DeForest Kelley (Dr. Leonard H. McCoy)
Brioni Farrell (Tula)
Sid Haig (First Lawgiver)
Charles Macaulay (Landru)
Jon Lormer (Tamar)
Morgan Farley (Hacom)
Christopher Held (Ensign Lindstrom)
George Takei (Lt. Hikaru Sulu)
James Doohan (Lt. Cmdr. Montgomery Scott)
Nichelle Nichols (Lt. Uhura)
Sean Morgan (Lt. O'Neil)
Ralph Maurer (Bilar)
David L. Ross (Lt. Galloway)
Eddie Paskey (Lt. Lesley)
 
Notes
In one of Star Trek: The Original Series' recurring themes, the Beta III society is controlled by a computer, Landru. The computer was created by the real Landru 6000 years ago. Kirk convinces Landru that it is evil and it destroys itself.
Sociologist Lindstrom remains behind with a party of experts to help the Betans rebuild their culture.
Spock apparently is able to sleep with his eyes open.
 

 

"Space Seed"

 
Episode Number22 Khan Noonien Singh
 Khan Noonien Singh
Production Number024 
Season
Stardate3141.9 
Original Airdate2/16/1967 
 
StoryCarey Wilber 
TeleplayGene L. Coon and Carey Wilber 
DirectorMarc Daniels 
 
Synopsis
The Enterprise discovers the S.S. Botany Bay, an old-style, pre-warp sleeper ship from Earth that contains several bodies in stasis. Amongst these bodies is Khan Noonien Singh, a genetically-engineered strongman and one of the great leaders of Earth's Eugenics War of the 1990s. Once aboard the U.S.S. Enterprise, Khan quickly befriends the beautiful Lieutenant Marla McGivers, and together with his Botany Bay crew and new companion, they seize control of the Enterprise.
 
Guest Cast
Ricardo Montalban (Khan Noonien Singh)
Madlyn Rhue (Lt. Marla McGivers)
DeForest Kelley (Dr. Leonard H. McCoy)
James Doohan (Lt. Cmdr. Montgomery Scott)
Blaisdell Makee (Lt. Spinelli)
Nichelle Nichols (Lt. Uhura)
Mark Tobin (Joaquin)
Kathy Ahart (Crew Woman)
John Winston (Lt. Kyle)
 
Notes
The S.S. Botany Bay is a DY100-class vessel built in the 1990s.
Khan and his crew are exiled to planet Ceti Alpha V where they must start life anew. Rather than face court martial, Marla McGivers chooses exile with Khan. (Female officers don't seem to fare very well in The Original Series.)
Spock wonders what will become of the seed they have planted. These events become the background for the motion picture Star Trek II: The Wrath of Khan.
 

 

"A Taste of Armageddon"

 
Episode Number23  
Production Number023 
Season
Stardate3192.1 
Original Airdate2/23/1967 
 
StoryRobert Hamner 
TeleplayRobert Hamner and Gene L. Coon 
DirectorJoseph Pevney 
 
Synopsis
The U.S.S. Enterprise is ordered to pick up Ambassador Robert Fox, who is headed to planet Eminiar VII on a diplomatic mission. Upon arriving at the planet, the ship is warned away because Eminiar is at war with Vendikar, the third planet in the Eminiar system. Beaming to the surface with a landing party, Kirk discovers that the war between the two planets is controlled by computers, which determine the damage done and the fatalities caused by the attacks, and assigns citizens to report to disintegration machines, which they do so willingly.
 
Guest Cast
David Opatoshu (First Councilman Anan 7)
Gene Lyons (Ambassador Robert Fox)
DeForest Kelley (Dr. Leonard H. McCoy)
James Doohan (Lt. Cmdr. Montgomery Scott)
Barbara Babcock (Mea 3)
Miko Mayama (Yeoman Tamura)
David L. Ross (Lt. Galloway)
Nichelle Nichols (Lt. Uhura)
Sean Kenney (Lt. DePaul)
Robert Sampson (Sar 6)
 
Notes
The last starship to visit Eminiar VII was the U.S.S. Valiant, over 50 years ago. The ship never returned from the mission.
The United Federation of Planets is mentioned for the first time in this episode.
Spock mentions for the first time that "Vulcanians" have telepathic ability, which he uses to control an Eminiaran guard, forcing him to open their locked door. (This seems to contradict the episode "Where No Man Has Gone Before", where Mitchell and Dehner have the highest ESP ratings on the ship).
Ambassador Fox stays behind to mediate peace between Eminiar and Vendikar.
Kirk gives "General Order 24" to Scotty -- the destruction of the planet's inhabitable surface.
The Eminiar disrupters make a loud noise, but no visible beam.
 

 

"This Side of Paradise"

 
Episode Number24 Spock is sprayed with the plant spores
 Spock is sprayed with the plant spores
Production Number025 
Season
Stardate3417.3 
Original Airdate3/2/1967 
 
StoryNathan Butler and D.C. Fontana 
TeleplayD.C. Fontana 
DirectorRalph Senensky 
 
Synopsis
The Enterprise arrives at Omicron Ceti III, hoping to find surviving colonists who have been exposed to deadly berthold rays for three years, and the crew is surprised to find the colony alive and flourishing. Spock beams to the surface and meets Leila Kalomi, a young botanist that he'd worked with previously, who also developed romantic feelings for him. Eager to keep Spock on Omicron Ceti, Leila leads the Vulcan to a secluded section of the planet where a native plant sprays him with their spores. Leila tells Spock that the plant induces feelings of harmony and peace and love, along with a desire to remain on Omicron Ceti III and their paradise.
 
Guest Cast
Jill Ireland (Leila Kalomi)
Frank Overton (Elias Sandoval)
DeForest Kelley (Dr. Leonard H. McCoy)
Grant Woods (Lt. Kelowitz)
George Takei (Lt. Hikaru Sulu)
Nichelle Nichols (Lt. Uhura)
Michael Barrier (Lt. Vincent DeSalle)
Dick Scotter (Painter)
Eddie Paskey (Lt. Lesley)
 
Notes
The spores thrive on berthold rays, which is why the colonists survived. Anger nullifies the effect of the spores.
After McCoy is overtaken by the spores, he develops an over-exaggerated Southern accent.
Leila first told Spock that she loved him 6 years ago; they apparently worked together on Earth at that time.
 

 

"The Devil in the Dark"

 
Episode Number25 Spock mind-melds with the Horta
 Spock mind-melds with the Horta
Production Number026 
Season
Stardate3196.1 
Original Airdate3/9/1967 
 
Story 
TeleplayGene L. Coon 
DirectorJoseph Pevney 
 
Synopsis
The U.S.S. Enterprise arrives to investigate reports of an unknown monster deep in the mining tunnels of Janus VI. The being is apparently destroying machinery and killing the miners, and has the ability to burrow through solid rock. Spock attempts a Vulcan mind meld with the entity and discovers that it is an intelligent being. A native of the planet, the Horta is normally peaceful and doesn't mind sharing the planet with the miners, but when they broke into the Horta's hatchery and unknowingly destroyed many of her eggs, it attacked to protect its remaining unborn children.
 
Guest Cast
DeForest Kelley (Dr. Leonard H. McCoy)
Ken Lynch (Chief Engineer Vanderberg)
Barry Russo (Lt. Cmdr. Giotto)
James Doohan (Lt. Cmdr. Montgomery Scott)
Brad Weston (Ed Appel)
Biff Elliot (Schmitter)
George E. Allen (Engineer)
Jon Cavett (Guard)
 
Notes
The Horta is a silicon-based creature. The silicon nodules the miners discovered were its eggs.
This is the first episode McCoy uses what will become his catch phrase, stating "I'm a doctor, not a brick-layer".
The Horta looked like an over-sized plastic vomit.
 

 

"Errand of Mercy"

 
Episode Number26 Captain Kirk and Klingon commander Kor
 Captain Kirk and Klingon commander Kor
Production Number027 
Season
Stardate3198.4 
Original Airdate3/23/1967 
 
Story 
TeleplayGene L. Coon 
DirectorJohn Newland 
 
Synopsis
While negotiations quickly break down between the Federation and the Klingon Empire, the Enterprise is sent to Organia, a planet of primitive people strategically located between the two sides. Kirk and Spock beam down in an attempt to convince the peaceful Organians to accept Federation aid and protection against the Klingons. When the Klingon forces attack the planet, the Enterprise and the Klingon forces square off to battle in orbit of the planet. Displeased by the outbreak of violence, the Organians reveal themselves to be powerful creatures of pure energy who easily neutralize the weapons on both ships, and force both sides to sign a peace treaty.
 
Guest Cast
John Abbott (Ayelborne)
John Colicos (Captain Kor)
George Takei (Lt. Hikaru Sulu)
Nichelle Nichols (Lt. Uhura)
Peter Brocco (Claymare)
Victor Lundin (Klingon Lieutenant)
David Hillary Hughes (Trefayne)
Walt Davis (Klingon Soldier #1)
George Sawaya (Klingon Soldier #2)
 
Notes
This episode introduces the Klingons, who appear as ruthless military dictators here.
The Organians reveal that in the future, the Klingons and the Federation will be allies.
Kor will return in the Deep Space Nine episodes "Blood Oath" and "The Sword of Kahless".
The Organians will make another appearance in the Star Trek: Enterprise episode "Observer Effect".
 

 

"The Alternative Factor"

 
Episode Number27  
Production Number020 
Season
Stardate3087.6 
Original Airdate3/30/1967 
 
Story 
TeleplayDon Ingalls 
DirectorGerd Oswald 
 
Synopsis
Starfleet is baffled by a phenomenon and suspicious it's a "rip in the universe." It sends the Enterprise to check it out and what at first is thought to be a sign of attack is no less than the impact of one man. This man, Lazarus, veers wildly between calm and chaos as he pursues his single-minded mission. The puzzle becomes more baffling when he turns out to be "twins" -- and his small downed spacecraft a gateway to another dimension.
 
Guest Cast
Robert Brown (Lazarus)
DeForest Kelley (Dr. Leonard H. McCoy)
Janet MacLachlan (Lt. Charlene Masters)
Nichelle Nichols (Lt. Uhura)
Richard Derr (Commodore Barstow)
Arch Whiting (Assistant Engineer)
Christian Patrick (Transporter Chief)
Eddie Paskey (Lt. Lesley)
 
Notes
This episode featured some really bad visual effects.
Eddie Paskey's red-shirt character is finally given a name in this episode -- Lesley.
 

 

"The City on the Edge of Forever"

 
Episode Number28 Kirk and Spock at the Guardian of Forever
 Kirk and Spock at the Guardian of Forever
Production Number028 
Season
Stardate3134.0 
Original Airdate4/6/1967 
 
Story 
TeleplayHarlan Ellison 
DirectorJoseph Pevney 
 
Synopsis
While treating Sulu on the bridge, McCoy accidentally injects himself with an overdose of cordrazine. In his cordrazine induced frenzy, McCoy exits the bridge and manages to beam himself down to the planet below. Kirk and the landing party are too late to stop the Doctor from leaping through a living time machine called "The Guardian of Forever." At that moment, the Enterprise ceases to exist and the landing party is stranded. The Guardian explains that McCoy went back into Earth's history and changed it, thereby altering the future. Kirk and Spock go through the Guardian, to Depression-era America, a few days before McCoy is to arrive and change history.
 
Guest Cast
Joan Collins (Sister Edith Keeler)
DeForest Kelley (Dr. Leonard H. McCoy)
James Doohan (Lt. Cmdr. Montgomery Scott)
George Takei (Lt. Hikaru Sulu)
Nichelle Nichols (Lt. Uhura)
John Harmon (Rodent)
Hal Baylor (Policeman)
David L. Ross (Lt. Galloway)
John Winston (Lt. Kyle)
Bartell La Rue (voice of The Guardian)
 
Notes
Even though Kirk falls in love with Edith Keeler, he must let her die to restore the timeline.
As soon as the Enterprise disappears, Uhura tells Kirk, "Captain, I'm frightened!"
To explain Spock's ears, Kirk says that Spock is Chinese and he caught his ears in a mechanical rice picker. (Rather insensitive for such an enlightened century.)
 

 

"Operation: Annihilate!"

 
Episode Number29  
Production Number029 
Season
Stardate3287.2 
Original Airdate4/13/1967 
 
Story 
TeleplayStephen W. Carabatsos 
DirectorHerschel Daugherty 
 
Synopsis
Arriving at the planet Deneva, home of Kirk's only brother Sam and his family, the U.S.S. Enterprise picks up a transmission from a Denevan pilot who has steered his craft into the sun to destroy some unknown menace. Beaming down to the planet, Kirk finds his brother dead and Sam's wife and son in a fatal condition. Before Aurelan dies, she informs the landing party that Deneva has been infested with large, amoeba-like aliens that attack humans and intertwine their tentacles with the body's nervous system, inflicting excruciating pain while forcing the victim to obey the entity.
 
Guest Cast
DeForest Kelley (Dr. Leonard H. McCoy)
James Doohan (Lt. Cmdr. Montgomery Scott)
Joan Swift (Aurelan Kirk)
Maurishka Taliferro (Yeoman Zahra)
Majel Barrett (Nurse Christine Chapel)
George Takei (Lt. Hikaru Sulu)
Nichelle Nichols (Lt. Uhura)
Craig Hundley (Peter Kirk)
Fred Carson (First Denevan)
Jerry Catron (Second Denevan)
 
Notes
The Deneva colony was colonized 100 years prior, a stop on the Earth Cargo Service run.
The Enterprise has 14 science labs, one of which is shown for the first time in this episode.
Bright light kills the creatures. McCoy used all light spectrums when testing the procedure on Spock, blinding him. Since Vulcans have an inner eyelid, Spock recovers from his blindness (naturally). 210 satellites are deployed around Deneva to bombard the planet with ultra-violet light.
William Shatner (sporting a moustache) also played the dead body of Sam Kirk.
When they first encounter the parasites, Yeoman Zahra says, "They don't even look real." She was right about that. Regardless, this episode is still a classic.
 

Season 1 Season 2 Season 3

Series Index Home