Marilyn Monroe (The Girl), Tom Ewell (Richard Sherman), Evelyn Keyes (Helen Sherman), Sonny Tufts (Tom MacKenzie), Robert Strauss (M. Kruhulik), Oskar Homolka (Dr. Brubaker), Marguerite Chapman (Miss Morris) more..., Victor Moore (Plumber), Dolores Rosedale (Elaine), Donald MacBride (Mr. Brady), Carolyn Jones (Miss Finch - Nurse), Brandon Beach (Commuter at Station (uncredited)), Steven Benson (Kid at Train Station (uncredited)), George Bruggeman (Commuter at Station (uncredited)), George Chester (Porter (uncredited)), Noble 'Kid' Chissell (Train Station Gateman (uncredited)), Richard Elmore (Commuter at Station (uncredited)), Duke Fishman (Commuter at Station (uncredited)), Bess Flowers (Undetermined Secondary Role (uncredited)), Dorothy Ford (Indian Girl / Tall Beauty at Train Station (uncredited)), Slim Gaut (Vegetarian Restaurant Patron (uncredited)), Robert Haines (Man at Train Station (uncredited)), Dick Johnstone (Vegetarian Restaurant Patron (uncredited)), Wilbur Mack (Man at Train Station (uncredited)), Mathew McCue (Vegetarian Restaurant Patron (uncredited)), Doro Merande (Waitress at Vegetarian Restaurant (uncredited)), Tom Nolan (Ricky Sherman (uncredited)), Ron Nyman (Indian (uncredited)), William H. O'Brien (Man at Train Station (uncredited)), John Pedrini (Commuter at Station (uncredited)), Fred Perce (Commuter at Station (uncredited)), Ralph Sanford (Train Station Gateman (uncredited)), Bernard Sell (Commuter at Station (uncredited)), Mary Young (Woman in Train Station (uncredited))

Billy Wilder (Producer), Charles K. Feldman (Producer), George Axelrod (Screenplay), Billy Wilder (Screenplay), Milton Krasner (Director of Photography), Doane Harrison (Associate Producer), Alfred Newman (Original Music Composer) more..., Hugh S. Fowler (Editor), George W. Davis (Art Direction), Lyle R. Wheeler (Art Direction), Stuart A. Reiss (Set Decoration), Walter M. Scott (Set Decoration), Travilla (Costume Design), E. Clayton Ward (Sound), Saul Bass (Title Designer), Ben Nye (Makeup Artist), Helen Turpin (Hairstylist), Harry M. Leonard (Sound), Ray Kellogg (Special Effects), Edward B. Powell (Orchestrator), Joseph E. Rickards (Assistant Director), Jule Styne (Songs), Sammy Cahn (Lyricist), George Axelrod (Theatre Play), Gladys Rasmussen (Hairdresser), Allan Snyder (Makeup Artist), Gladys Witten (Hairstylist), A.F. Erickson (Unit Manager), Saul Wurtzel (Unit Production Manager), Louis Hesse (Sound Editor), Ray Raymond (Sound Editor), Dolph Rudeen (Sound Editor), Sam Shaw (Still Photographer), Felix Trimboli (Assistant Camera), Felix Trimboli (Second Unit Cinematographer), Gerard Baldwin (Opening/Ending Animation), Lyman Hallowell (Assistant Editor), Orven Schanzer (First Assistant Editor), Cyril J. Mockridge (Additional Music), Alfred Newman (Conductor) and others.