James Coburn as Derek Flint

Lee J. Cobb as Cramden

Gila Golan as Gila

Edward Mulhare as Malcolm Rodney

Benson Fong as Dr. Schneider

Shelby Grant as Leslie

Sigrid Valdis as Anna

Gianna Serra as Gina

Helen Funai as Sakito

Michael St. Clair as Hans Gruber

Rhys Williams as Dr. Krupov

Russ Conway as American General

Ena Hartman as WAC

Bill Walker as American Diplomat

Peter Brocco as Dr. Wu

Fred Aldrich as Restaurant Patron (uncredited)

Leon Alton as Military Officer at Meeting (uncredited)

George Blagoi as Soviet Admiral (uncredited)

James Brolin as Technician (uncredited)

Robert Gunner as Agent 0008 (uncredited)

Totty Ames as Laura (uncredited)

Herbert Lytton as Commander (uncredited)

Harry Carter as Security Guard (uncredited)

Jack Gordon as Waiter (uncredited)

Chuck Hicks as Guard (uncredited)

Lou Krugman as Marseilles Club Manager (uncredited)

Alberto Morin as Cuban Diplomat (uncredited)

Ron Nyman as Military Officer (uncredited)