 | Patrick Stewart | .... | Captain Jean-Luc Picard |
 | Jonathan Frakes | .... | Commander William T. Riker |
 | LeVar Burton | .... | Lt. Commander Geordi La Forge |
 | Michael Dorn | .... | Lieutenant Worf |
 | Gates McFadden | .... | Dr. Beverly Crusher |
 | Marina Sirtis | .... | Counselor Deanna Troi |
 | Brent Spiner | .... | Lt. Commander Data |
 | Denise Crosby | .... | Lieutenant Tasha Yar |
 | Colm Meaney | .... | O'Brien |
 | John de Lancie | .... | Q |
 | Andreas Katsulas | .... | Commander Tomalak |
 | Clyde Kusatsu | .... | Admiral Nakamura |
 | Patti Yasutake | .... | Nurse Alyssa Ogawa |
 | Pamela Kosh | .... | Jessel |
 | Tim Kelleher | .... | Lt. Gaines |
 | Alison Brooks | .... | Ensign Chilton |
 | Stephen Matthew Garvin | .... | Ensign |
 | Majel Barrett | .... | Enterprise Computer (voice) |
 | Joyce Agu | .... | Ensign Gates (uncredited) |
 | David Keith Anderson | .... | Ensign Armstrong (uncredited) |
 | Cameron | .... | Ensign Kellogg (uncredited) |
 | Tracee Cocco | .... | Ensign Jae (uncredited) |
 | Marijane Cole | .... | Operations Division Officer (uncredited) |
 | Brian Demonbreun | .... | Andrew Powell (uncredited) |
 | Holiday Freeman | .... | Command Division Officer (uncredited) |
 | Keith Gearhart | .... | Operations Division Officer (uncredited) |
 | Bill Hagy | .... | Starfleet Officer (uncredited) |
 | Fumiko Hamada | .... | Command Division Officer (uncredited) |
 | Lauren Kim | .... | Operations Division Officer (uncredited) |
 | Geri Lee | .... | Post-Atomic Horror Trial Spectator (uncredited) |
 | David B. Levinson | .... | Post-Atomic Horror Trial Spectator (uncredited) |
 | Pauline Olsen | .... | Security Officer (uncredited) |
 | Jerry L. Quinn | .... | Waiter (uncredited) |
 | Richard Sarstedt | .... | Command Division Officer (uncredited) |
 | Leslie Stump | .... | Post-Atomic Horror Trial Spectator (uncredited) |
 | Guy Vardaman | .... | Darien Wallace (uncredited) |