Dean Martin as Matt Helm

Ann-Margret as Suzie Solaris

Karl Malden as Julian Wall

Camilla Sparv as Coco Duquette

James Gregory as MacDonald

Beverly Adams as Lovey Kravezit

Richard Eastham as Dr. Norman Solaris

Tom Reese as Ironhead

Duke Howard as Billy Orcutt

Ted Hartley as Guard

Marcel Hillaire as Police Capt. Deveraux

Corinne Cole as Miss January

Robert Terry as Dr. Rogas

Dean Paul Martin as Self

Desi Arnaz Jr. as Self

Billy Hinsche as Self

Jacqueline Fontaine as Singer at Wake (uncredited)

Soon-Tek Oh as Tempura (uncredited)

Gary Lasdun as Philippe (uncredited)

Mary Jane Mangler as Miss February (uncredited)

Amadee Chabot as Miss March (uncredited)

Luci Ann Cook as Miss April (uncredited)

Marilyn Tindall as Miss May (uncredited)

Dee Duffy as Miss June (uncredited)

Jan Watson as Miss July (uncredited)

Rena Horten as Miss August (uncredited)

Mary Hughes as Miss September (uncredited)

Dale Brown as Miss October (uncredited)

Lynn Hartoch as Miss November (uncredited)

Barbara Burgess as Miss December (uncredited)

Nadia Sanders as Dominique (uncredited)

Martin Abrahams as Dancer (uncredited)

Dick Delmar as Dancer (uncredited)

Heidi Winston as Dancer (uncredited)

Jay Dee Witney as Dancer (uncredited)

Martin Abrahams as Dancer at club (uncredited)

Tom Anthony as Service Station Attendant (uncredited)

William Bagdad as World Wide Agent (uncredited)

Vincent Barbi as Henchman (uncredited)

Fred Catania as Henchman (uncredited)

Tony Dante as French Sailor (uncredited)

George Dee as Bum (uncredited)

Igor Dega as Policeman (uncredited)

Nick Dimitri as Guard (uncredited)

Dirk Evans as Guard (uncredited)

Peter Finch as British agent (uncredited)

Virginia Ann Ford as Jeanne (uncredited)

Helen Funai as Bath Attendant (uncredited)

Dee Gardner as Slaygirl (uncredited)

Richard Gardner as Guard (uncredited)

Joseph Gazal as Messenger (uncredited)

Frank Gerstle as Furnas (uncredited)

Joe Gray as Guard (uncredited)

Karen Joy as Waitress (uncredited)

Max Kleven as Fortress Guard (uncredited)

Beatriz Monteil as World Wide Agent (uncredited)

Morry Ogden as Fortress Guard (uncredited)

Bob Peoples as Fortress Guard (uncredited)

Alex Rodine as Guard (uncredited)

Dale Van Sickel as Fortress Guard (uncredited)