 | Marilyn Monroe als The Girl |
 | Tom Ewell als Richard Sherman |
 | Evelyn Keyes als Helen Sherman |
 | Sonny Tufts als Tom MacKenzie |
 | Robert Strauss als M. Kruhulik |
 | Oskar Homolka als Dr. Brubaker |
 | Marguerite Chapman als Miss Morris |
 | Victor Moore als Plumber |
 | Donald MacBride als M. Brady |
 | Carolyn Jones als Miss Finch |
 | Dolores Rosedale als Elaine |
 | Kathleen Freeman als Woman at Vegetarian Restaurant (uncredited) |
 | Doro Merande als Waitress at Vegetarian Restaurant (uncredited) |
 | Ron Nyman als Indian (uncredited) |
 | Tom Nolan als Ricky Sherman (uncredited) |
| Ralph Littlefield als Man at Vegetarian Restaurant (uncredited) |
 | Dorothy Ford als Indian Girl / Tall Beauty at Train Station (uncredited) |
 | William H. O'Brien als Man at Train Station (uncredited) |
| Steven Benson als Kid at Train Station (uncredited) |
| Billy Wilder | Director |
| 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 |
| 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 |
| Ray Kellogg | Special Effects |
| Saul Bass | Title Designer |
| Edward B. Powell | Orchestrator |
| Ben Nye | Makeup Artist |
| Helen Turpin | Hairstylist |
| E. Clayton Ward | Sound |
| Harry M. Leonard | Sound |
| Joseph E. Rickards | Assistant Director |
| Jule Styne | Songs |
| Sammy Cahn | Lyricist |
