B'Elanna Torres and Lt. Tom Paris are abducted by the Vidiians, the alien race who suffer from the Phage. During an experiment, B'Elanna is literally split into two separate beings — one fully Klingon, the other fully human — by Sulan, a Vidiian scientist in search of a cure for the deadly disease. Her two selves must learn to work together in order to escape the alien laboratory and rescue Lt. Paris. When one of her personas is killed in the escape, B'Elanna is faced with the toughest decision of her life — to try and recapture her dual nature through advanced scientific technology, or to continue on as a completely singular being.

Brian Markinson (Lt. Peter Durst/Sulan)
Rob LaBelle (Talaxian prisoner)
Barton Tinapp (Guard #1)

• The Vidiians where introduced in "Phage".
  
• Sulan kills Lt. Durst and steals his face.
  
• "Faces" was nominated in 1995 for an Emmy in "Outstanding Individual Achievement in Makeup for a Series."