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

Alan Nourse

Story

George Spenton-Foster

Director

Philip Broadley

Adaptation

George Spenton-Foster

Associate Producer

Irene Shubik

Producer