 | Donald O'Connor als Melvin Hoover |
 | Debbie Reynolds als Judy Schneider / Judy LeRoy |
 | Una Merkel als Mom Schneider |
 | Richard Anderson als Harry Flack |
 | Allyn Joslyn als Frank Schneider |
 | Les Tremayne als Mr. Henneman |
 | Noreen Corcoran als Clarabelle Schneider |
 | Jim Backus als Mergo |
 | Barbara Ruick als Studio Guide |
 | Robert Taylor als Himself, Cameo Appearance in Judy's Dream |
 | Nesdon Booth als Police Captain (uncredited) |
 | Steve Forrest als Photographer on Crane (uncredited) |
 | Robert Fuller als Acrobatic Cheerleader (uncredited) |
 | Ned Glass als Theatre Manager (uncredited) |
| Lyn Wilde als Telephone Girl (uncredited) |
| Don Weis | Director |
| George Wells | Screenplay |
| László Vadnay | Story |
| Helen Rose | Costume Design |
| Douglas Shearer | Recording Supervision |
| Harold Rosson | Director of Photography |
| Adrienne Fazan | Editor |
| Cedric Gibbons | Art Direction |
| Edwin B. Willis | Set Decoration |
| Ruth Brooks Flippen | Additional Dialogue |
| George Wells | Producer |
| Eddie Imazu | Art Direction |
| Jack Martin Smith | Art Direction |
| Jacques Mapes | Set Decoration |
| Sydney Guilaroff | Hairstylist |
| John Truwe | Makeup Artist |
| William Tuttle | Makeup Artist |
| Marvin Stuart | Assistant Director |
| A. Arnold Gillespie | Special Effects |
| Skip Martin | Orchestrator |
| George Stoll | Music Director |
| Robert Alton | Choreographer |
