 | Hedy Lamarr als Vanessa Windsor |
 | Jane Powell als Penny Windsor |
 | Jan Sterling als Lily Frayne |
 | George Nader als Chris Farley |
 | Jerry Paris als Hank Lopez |
 | Gregg Palmer als Piggy |
 | Mabel Albertson als Irma Jones |
 | James Gleason als Tom Maloney |
 | Richard H. Cutting als Dr. John Ramsay |
 | Ann Doran als Nurse |
 | Yvonne Peattie als Hairdresser |
 | Max Showalter als Charlie Grant |
| Douglas Evans als The Director |
 | Aram Katcher als Mischa Boroff |
 | Gertrude Astor als Actress on Movie Set (uncredited) |
 | Richard Avonde als Lily's Gigolo Pepe (uncredited) |
 | Robert Brubaker als Bartender (uncredited) |
 | Hal K. Dawson als Assistant Director Eddie (uncredited) |
| Isabelle Dwan als Masseuse (uncredited) |
 | William Henry als Delivery Man (uncredited) |
| George Hickman als Observer at Lighting Accident (uncredited) |
| Walter Kelley als Assistant Director (uncredited) |
 | Kenner G. Kemp als Stagehand (uncredited) |
| William Meader als Barnes the Chauffeur (uncredited) |
 | Laurie Mitchell als Manicurist (uncredited) |
 | Almira Sessions als Mabel (uncredited) |
 | Frank Sully als Taxicab Driver (uncredited) |
| John Truax als Observer at Lighting Accident (uncredited) |
 | Sailor Vincent als Observer at Lighting Accident (uncredited) |
| Robert Wegner als Coffee-Wagon Attendant (uncredited) |
| Harry Keller | Director |
| Solly Martino | Props |
| Max Nippell | Electrician |
| Milton Carruth | Editor |
| Albert Zugsmith | Producer |
| Albert Zugsmith | Story |
| Robert Hill | Screenplay |
| Russell Metty | Director of Photography |
| Hans J. Salter | Original Music Composer |
| Robert Clatworthy | Art Direction |
| Alexander Golitzen | Art Direction |
| Russell A. Gausman | Set Decoration |
| Julia Heron | Set Decoration |
| Ruby R. Levitt | Set Decoration |
| Bill Thomas | Costume Design |
| Bud Westmore | Makeup Artist |
| Lillian Burkhart | Hairstylist |
| Nick Marcellino | Makeup Artist |
| Vincent Romaine | Makeup Artist |
| Sergei Petschnikoff | Unit Production Manager |
| Gordon McLean | Assistant Director |
| Wilbur Mosier | Assistant Director |
| Ed Case | Props |
| Glenn E. Anderson | Sound |
| Leslie I. Carey | Sound |
| Perry Devore | Sound |
| John Oliver | Sound |
| Frank H. Wilkinson | Sound |
