Marilyn Monroe

Sugar Kane Kowalczyk

Jack Lemmon

Jerry (Daphne)

Tony Curtis

Joe (Josephine)

George Raft

Spats Colombo

Pat O'Brien

Detective Mulligan

Joe E. Brown

Osgood Fielding III

Nehemiah Persoff

Little Bonaparte

Joan Shawlee

Sweet Sue

Billy Gray

Sig Poliakoff

George E. Stone

Toothpick Charlie

Dave Barry

Beinstock

Mike Mazurki

Spats' Henchman

Harry Wilson

Spats' Henchman

Beverly Wills

Dolores

Barbara Drew

Nellie

Edward G. Robinson Jr.

Johnny Paradise

Mary Foley

Band Member (uncredited)

Georgia Joan Hannan

Band Member (uncredited)

Colleen O'Sullivan

Band Member (uncredited)

Al Breneman

Bellhop (uncredited)

Tom Kennedy

Bouncer (uncredited)

Edwin Rochelle

Chef (uncredited)

Robert Cole

Club Patron (uncredited)

Sammy Shack

Commuter at Station (uncredited)

Billy Wilder

Director