 | Danny Kaye als Red Nichols |
 | Barbara Bel Geddes als Wila Stutsman |
 | Louis Armstrong als Louis Armstrong |
 | Harry Guardino als Tony Valani |
 | Bob Crosby als Wil Paradise |
 | Bobby Troup als Artie Schutt |
 | Susan Gordon als Young Dorothy Nichols |
 | Tuesday Weld als Teenaged Dorothy Nichols |
 | Ray Anthony als Jimmy Dorsey |
 | Shelly Manne als Dave Tough |
 | Ray Daley als Glenn Miller |
 | Valerie Allen als Tommye Eden |
 | Cindy Carol als Girl at Birthday Party |
| Robert Banas als Dancer at College Prom |
 | Toby Michaels als Girl at Birthday Party |
 | Charles Herbert als Patient |
 | John Benson als Musician |
| Earl Barton als Choreographer |
| Melville Shavelson | Director |
| Robert Smith | Story |
| Jack Rose | Screenplay |
| Melville Shavelson | Screenplay |
| Jack Rose | Producer |
| Leith Stevens | Original Music Composer |
| Daniel L. Fapp | Director of Photography |
| Frank P. Keller | Editor |
| Tambi Larsen | Art Direction |
| Hal Pereira | Art Direction |
| Sam Comer | Set Decoration |
| Grace Gregory | Set Decoration |
| Edith Head | Costume Design |
| Wally Westmore | Makeup Supervisor |
| Richard Caffey | Assistant Director |
| Charles Grenzbach | Sound Recordist |
| John Wilkinson | Sound Recordist |
| Earl Barton | Choreographer |
| John P. Fulton | Special Effects |
| Farciot Edouart | Visual Effects |
| W. Wallace Kelley | Second Unit Director of Photography |
| Nellie Manley | Hair Supervisor |
| Hal C. Kern | Production Assistant |
| Leith Stevens | Conductor |
| Red Nichols | Musician |
| Sylvia Fine | Songs |
