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)