When a strange, symbiotic alien creature boards Enterprise and captures several crew members, it's up to Hoshi to decipher the creature's complex language.

Vaughn Armstrong (Kreetassan Captain)
Joseph Will (Lt. Michael Rostov)
Renee Goldsberry (Crewman Denise Kelly)
Porthos

• Vox Sola is Latin for "One Voice".
  
• The crew offends the Kreetassan by eating in front of them. They view eating as something that should be done in private, like mating.
  
• Vaughn Armstrong (Kreetassan Captain) also plays recurring character Admiral Forrest.
  
• This is the second Enterprise episode directed by Voyager's Roxann Dawson.