Geoffrey Graves
David Broadnax
Liz
Stella Stevens
Dr. Halstead
Gordon Mulholland
Agent Donelly
Marius Weyers
William Joyce
Norman Coombes
Major Travis
Victor Melleney
Vincent Napier
Arthur Brauss
Pamela (as Lena Nicols)
Lena Farugia
Colonel Duncan
Brian O'Shaughnessy
Customs Officer
Len Sparrowhawk
Vlees / Vlees' Twin
Larry Taylor
Bill
Ian Yule
Stanwell
Ronald France
Sue
Ken Gampu
Director
Michael D. Moore
Screenplay
Emmett Murphy
Story
Producer
Raymond R. Homer
Director of Photography
Hans Kühle Jr.