 | Jeanne Crain als Marjorie "Margie" MacDuff |
 | Glenn Langan als Prof. Ralph Fontayne |
 | Lynn Bari als Miss Isabel Palmer |
 | Alan Young als Roy Hornsdale |
 | Barbara Lawrence als Marybelle Tenor |
 | Conrad Janis als Johnny "Johnikins" Green |
 | Esther Dale als Grandma McSweeney |
 | Hobart Cavanaugh als Mr. Angus MacDuff |
 | Ann E. Todd als Joyce Fontayne |
 | Hattie McDaniel als Cynthia |
 | Gurney Bell als Off-Screen Singer (voice) (uncredited) |
 | Vanessa Brown als Wanda (uncredited) |
| Buddy Clark als Off-Screen Singer (voice) (uncredited) |
 | Ken Darby als Off-Screen Singer (voice) (uncredited) |
| Hazel Dawn Jr. als Vi (uncredited) |
| Bill Days als Off-Screen Singer (voice) (uncredited) |
| Shirley Doble als Student (uncredited) |
| Jon Dodson als Off-Screen Singer (voice) (uncredited) |
 | Virginia Farmer als Audience Spectator at Debate (uncredited) |
| Robert Ford als Football Coach (uncredited) |
| Don Hayden als Charlie (uncredited) |
 | Diana Herbert als Senior Student (uncredited) |
| Jay Johnson als Off-Screen Singer (voice) (uncredited) |
| Bud Linn als Off-Screen Singer (voice) (uncredited) |
 | Laurette Luez als Student (uncredited) |
 | Warren Mills als Arnold Harrison (uncredited) |
 | Milton Parsons als Jefferson (uncredited) |
| Del Porter als Off-Screen Singer (voice) (uncredited) |
| Robert Scheerer als Student at Prom (uncredited) |
| Max Smith als Off-Screen Singer (voice) (uncredited) |
| L. Dwight Snyder als Off-Screen Singer (voice) (uncredited) |
| Martin Sperzel als Off-Screen Singer (voice) (uncredited) |
| Tom Stevenson als Salesman (uncredited) |
| Basil Walker als Audience Spectator at Debate (uncredited) |
| Margaret Wells als Matron (uncredited) |
| Cecil Weston als Teacher (uncredited) |
| Henry King | Director |
| Ruth McKenney | Story |
| Richard Bransten | Story |
| Frances C. Richardson | Researcher |
| F. Hugh Herbert | Screenplay |
| Walter Morosco | Producer |
| Louanne Hogan | Other |
| Charles G. Clarke | Director of Photography |
| Barbara McLean | Editor |
| Natalie Kalmus | Other |
| Leonard Doss | Other |
| Alfred Newman | Music Director |
| James Basevi | Art Direction |
| J. Russell Spencer | Art Direction |
| Thomas Little | Set Decoration |
| Frank E. Hughes | Set Decoration |
| Kay Nelson | Costume Design |
| Ben Nye | Makeup Artist |
| Fred Sersen | Visual Effects |
| Eugene Grossman | Sound |
| Roger Heman Sr. | Sound |
| Joseph C. Behm | Assistant Director |
| Howard W. Koch | Assistant Director |
| Stanley Huff | Assistant Director |
| Lou Kunkel | Camera Operator |
| Paul Neal | Sound Mixer |
| Edwin Hammeras | Special Effects |
| Eddie Linden | Special Effects |
| Robert Webb | Production Manager |
| Herbert Taylor | Orchestrator |
| Charles Henderson | Vocals |
| Benny Davis | Songs |
| J. Russel Robinson | Songs |
| Con Conrad | Songs |
