| George Montgomery | ... | Bill Abbot |
 | Ann Rutherford | ... | Connie Ward / Abbot |
| Glenn Miller | ... | Gene Morrison |
| The Glenn Miller Orchestra | ... | Gene Morrison's Orchestra (as The Glenn Miller Band) |
| Lynn Bari | ... | Jaynie Stevens |
| Carole Landis | ... | Natalie Mercer |
| Cesar Romero | ... | St. John 'Sinjin' Smith |
| Virginia Gilmore | ... | Elsie |
| Mary Beth Hughes | ... | Caroline Steele |
| The Nicholas Brothers | ... | Themselves (as Nicholas Brothers) |
| Tamara Geva | ... | Mrs. Beck |
| Frank Orth | ... | Rex Willet |
| rest of cast listed alphabetically: |
| Iris Adrian | ... | Blonde in Bus Station (uncredited) |
| Tex Beneke | ... | Phil Mercer, Band Member (uncredited) |
| Johnny Best | ... | Johnny Best, Orchestra Member (uncredited) |
| Ralph Brooks | ... | Assistant in Recording Booth (uncredited) |
| Ernie Caceres | ... | Ernie Caceres, Orchestra Member (uncredited) |
| Bill Cartledge | ... | Bellhop (uncredited) |
| Nick Cockrane | ... | Musician (uncredited) |
| Alec Craig | ... | Henry Fink (uncredited) |
| Frank D'Annolfo | ... | Frank D'Annolfo, Orchestra Member (uncredited) |
| Tom Dugan | ... | Bus driver (uncredited) |
| Bullets Durgom | ... | Bullets (uncredited) |
| Ray Eberle | ... | Ray Eberle, Band Vocalist (uncredited) |
| Dale Evans | ... | Hazel, Girl at soda fountain (uncredited) |
| Edith Evanson | ... | Hilda (uncredited) |
| Jackie Gleason | ... | Ben Beck, Bass Player (uncredited) |
| Jane Goude | ... | Hostess (uncredited) |
| Bobby Hackett | ... | Bobby Hackett - Orchestra Member (uncredited) |
| Dick Hogan | ... | Undetermined Role (uncredited) |
| Kenneth Howell | ... | Undetermined Role (uncredited) |
| Olin Howland | ... | Ticket taker at dance (uncredited) |
| Marion Hutton | ... | Marion Hutton, Band Vocalist (uncredited) |
| Robert Emmett Keane | ... | Headwaiter (uncredited) |
| Al Klink | ... | Al Klink, Orchestra Member (uncredited) |
| Kay Linaker | ... | Margie (uncredited) |
| Arthur Loft | ... | Recording session director (uncredited) |
| Trudy Marshall | ... | Irene, Girl in Soda Shop (uncredited) |
| Skippy Martín | ... | Skippy Martin, Orchestra Member (uncredited) |
| Billy May | ... | Billy May, Orchestra Member (uncredited) |
| Dale McMickle | ... | Dale McMickle, Orchestra Member (uncredited) |
| Grant Mitchell | ... | Dr. Ward (uncredited) |
| The Modernaires | ... | The Modernaires, Singing Group (uncredited) |
| Harry Morgan | ... | Cully Anderson (uncredited) |
| Roseanne Murray | ... | Undetermined Role (uncredited) |
| William Newell | ... | Hotel Clerk (uncredited) |
| Lillian Porter | ... | Mousie, the Cigarette Girl (uncredited) |
| Jimmy Priddy | ... | Jimmy Priddy, Orchestra Member (uncredited) |
| Moe Purtill | ... | Buddy Steele, Drummer (uncredited) |
| Henry Roquemore | ... | Fat Man (uncredited) |
| Dick Rush | ... | Conductor (uncredited) |
| Willie Schwartz | ... | Willie Schwartz, Orchestra Member (uncredited) |
| Paul Tanner | ... | Paul Tanner, Orchestra Member (uncredited) |
| Dick Winslow | ... | Musician (uncredited) |
