Steve Cochran as Mark Andrews

Lizabeth Scott as Elsa Jenner

Herbert Marshall as Insp. Mackenzie

Nicole Maurey as Vivienne

Jon Whiteley as Erik Jenner

George Cole as Joshua Henry

Laurence Naismith as Jamison

Stanley Maxted as Colonel

Denis Shaw as Groggins

Fred Johnson as Fitzsimmons

John Horsley as Johnson

Frazer Hines as Jimmy

Peter Augustine as

Roland Brand as

Terry Cooke as

Basil Dignam as

Shirley Anne Field as

Peter Godsell as

Richard Goolden as

Aidan Harrington as

Arthur Lovegrove as

Vivian Matalon as

Myrtle Reed as

Ryck Rydon as

Joan Schofield as

Christopher Toyne as

John H. Watson as

Howard Williams as