Calificación
Reparto

Alexander Davion
Dr. Crawford

David Hemmings
Roger Westcott

Charles Tingwell
Captain Jaffe

Peter Fraser
Donnie Chaffer

Tony Wager
Jensen

Keith Buckley
Scotty McIntyre

David Savile
Gerry

Geoffrey Kenion
Dave

Barry Ashton
Frank

David Munro
Ken

Hedger Wallace
Commander

Lew Luton
Officer

Derek Martin
Guard