Dean Martin

as Jason Steel

Elizabeth Montgomery

as Mellisa Morris

Carol Burnett

as Stella Irving

Martin Balsam

as Sanford Kaufman

Jill St. John

as Toby Tobler

Richard Conte

as Leonard Ashley

Macha Méril

as Jacqueline Edwards

Louis Nye

as Harry Tobler

Yoko Tani

as Isami Hiroti

Jack Soo

as Yoshimi Hiroti

Dianne Foster

as Mona Kaufman

Elliott Reid

as Tom Edwards

Johnny Silver

as Charlie

Elisabeth Fraser

as Dora Ashley

Allison Hayes

as Mrs. Grayson

Templeton Fox

as Nurse

Tura Satana

as Stripper(uncredited)

Steve Clinton

as Sam Jones

Daniel Ocko

as Lawyer

Delia Salvi

as Sculptress

Lee Sabinson