Brian McNamara
(Jonathan Hays - Command Specialist)
Jason Michas
(Jessie Bienstock - Computer Sciences)
Duncan Regehr
(Jacob Brown - Former Commander)
Julia Montgomery
(Sally Arthur, MD - Space Medicine)
Tom Bresnahan
(Huxley Welles - Navigation(as Tom Breznahan))
Margaret Langrick
(Luz Sansone - Communication)
Sean O'Byrne
(Vance Arthur)
Peter Donat
(Admiral Beasley)
Ric Reid
(Capt. Forbes)
Frank C. Turner
(Willy)
Dinah Gaston
(Lani Miyori - Communication)
Bruce Harwood
(Leland Eugene, MD - Psychiatrist)
Bill Croft
(Trager)
John 'Bear' Curtis
(Whistlestick)
Stephen Dimopoulos
(The Crier)
Nigel Harvey
(Security Leader)
Andrew Kavadas
(Brody)
Barry Kennedy
(Lt. Matthews)
Kevin McNulty
(Cmdr. Gardiner)
Jennifer Michas
(Jeannie)
Stephen E. Miller
(Lt. Krieger)
Enid Saunders
(Elderly Woman)
Mike Stack
(Crewman #1)
Sandy Tucker
(Mrs. Bienstock)
Meredith Bain Woodward
(Mrs. Hays)
David Paul Hewitt White
(Guard(uncredited))
Henry Kingi
(Shell(uncredited))
Lynnette Mettey
(Priscilla(uncredited))