Robert Horton
— John Smith
Sebastian Cabot
— Max
Jill St. John
— Mary Harper
Eleanor Summerfield
— Mrs. Roberts
Lee Montague
— Igor
Douglas Sheldon
— Alworthy
Robert Russell
— Police Sergeant
Barbara Shelley
— Danielle
Harvey Hall
Donald Morley
— Dunning
Kenneth J. Warren
— Diaman
Philip Madoc
— Gar
Michael Segal
Timothy Bateson
Douglas Blackwell
