Hugh O'Brian
Hugh Lombard
Shirley Eaton
Ann Clyde
Fabian
Mike Raven
Leo Genn
General Mandrake
Stanley Holloway
Det. William Henry Blore
Wilfrid Hyde-White
Judge Arthur Cannon
Daliah Lavi
Ilona Bergen
Dennis Price
Dr. Edward Armstrong
Marianne Hoppe
Elsa Grohmann
Mario Adorf
Joseph Grohmann
Bill Mitchell
Narrator (voice)
Christopher Lee
Mr. U.N. Owen (voice)