Self - Host / Captain Vialez
Matt Kovacs / Jim Tally
Paul Hunter / Warden Carmody
Lt. Lyle Smith / Robert
Bonnie Brewster
Andrew Evans / Billy Bob Jackson
Tom Weldon / Dr. Soames
Larry Fleming / Sgt. Douglas Renfrew
Ellen / Clare Gibney
Slim Haskell / Paddy
Laura Warren / Lola
John Whitlock / Albert Cook
Officer Jim Kovacs / Reno Cromwell
Louise / Mrs. Gunther
Rick Saunders / Capt. Simpson
Joe / Brown
Susan Kerney / Mrs. McNulty
Warren Holt / Wesley Hammond
Admiral / Arthur Kerney
Alan Mitchell / Josef Lindquist
Emory Caldwell / Warren Fitzjerner
Narrator / Wendell Bensen / Swede
Lt. Al Merrit / Frank Dyson
Cochran / Mal Martin
