Tony CurtisJoe (Josephine)
Jack LemmonJerry (Daphne)
Marilyn MonroeSugar Kane Kowalczyk
Pat O'BrienDetective Mulligan
Joe E. BrownOsgood Fielding III
Nehemiah PersoffLittle Bonaparte
George E. StoneToothpick Charlie
Mike MazurkiSpats' Henchman
Harry WilsonSpats' Henchman
Edward G. Robinson Jr.Johnny Paradise
Mary FoleyBand Member (uncredited)
Georgia Joan HannanBand Member (uncredited)
Colleen O'SullivanBand Member (uncredited)
Al BrenemanBellhop (uncredited)
Tom KennedyBouncer (uncredited)
Edwin RochelleChef (uncredited)
Robert ColeClub Patron (uncredited)
Sammy ShackCommuter at Station (uncredited)
Fred ShermanDrunk (uncredited)
Sandra WarnerEmily (uncredited)
Danny Richards Jr.Fresh Bellboy (uncredited)
Paul FreesFuneral Director / Waiter / Josephine (voice) (uncredited)
Ted ChristyGangster (uncredited)
Phil BloomGangster at Convention (uncredited)
Willie BloomGangster at Convention (uncredited)
James J. CasinoGangster at Convention (uncredited)
Bing ConleyGangster at Convention (uncredited)
Paul CristoGangster at Convention (uncredited)
Duke FishmanGangster at Convention (uncredited)
Joseph GlickGangster at Convention (uncredited)
Joseph La CavaGangster at Convention (uncredited)
King LockwoodGangster at Convention (uncredited)
Jack PerryGangster at Convention (uncredited)
Sid TroyGangster at Convention (uncredited)
Ralph VolkieGangster at Massacre (uncredited)
Jimmy DimeGangster Convention Greeter (uncredited)
Jack GordonGangster with Charlie (uncredited)
Steve CarruthersHotel Guest (uncredited)
Sam HarrisHotel Guest (uncredited)
William H. O'BrienHotel Guest (uncredited)
Laurie MitchellMary Lou (uncredited)
Joe GrayMobster at Banquet (uncredited)
Tito VuoloMozzarella (uncredited)
Harold 'Tommy' HartOfficial #2 (uncredited)
Scott SeatonOld Man (uncredited)
Marian CollierOlga (uncredited)
Brandon BeachParty Guest (uncredited)
Noble 'Kid' ChissellPolice Officer (uncredited)
Franklyn FarnumParty Guest (uncredited)
George FordPolice Officer (uncredited)
John RoyPolice Officer (uncredited)
William Hoehne Jr.Policeman (uncredited)
Carl M. LevinessRetirement Home Resident (uncredited)
Helen PerryRosella (uncredited)
Grace Lee WhitneyRosella (uncredited)
Pat ComiskeySpats' Henchman (uncredited)
Tipp McClureSpats' Henchman (uncredited)
Alex BallSpeakeasy Patron (uncredited)
Beulah ChristianSpeakeasy Patron (uncredited)
Bobby GilbertSpeakeasy Patron (uncredited)
Stuart HallSpeakeasy Patron (uncredited)
Shep HoughtonSpeakeasy Patron (uncredited)
Hank MannSpeakeasy Patron (uncredited)
Frank McLureSpeakeasy Patron (uncredited)
Bert StevensSpeakeasy Patron (uncredited)
Arthur ToveySpeakeasy Patron (uncredited)
John IndrisanoWaiter (uncredited)
Cosmo SardoWaiter (uncredited)
Tiger Joe Marsh(uncredited)