David Broadnax

as Geoffrey Graves

Stella Stevens

as Liz

Arthur Brauss

as Vincent Napier

Lena Farugia

as Pamela (as Lena Nicols)

Brian O'Shaughnessy

as Colonel Duncan

Len Sparrowhawk

as Customs Officer

Larry Taylor

as Vlees / Vlees' Twin

Ian Yule

as Bill

Ronald France

as Stanwell

Ken Gampu

as Sue

Gordon Mulholland

as Dr. Halstead

Marius Weyers

as Agent Donelly

Norman Coombes

as William Joyce

Victor Melleney

as Major Travis

Ian Hamilton

as Doc Cooper