| Person | Type | Job | Role(s) |
|---|---|---|---|
 Jerry Wald | Crew | Writing | Screenplay |
 Johnny Mercer | Crew | Sound | Songs |
 Ray Enright | Crew | Directing | Director |
 Richard Macaulay | Crew | Writing | Screenplay |
 Harry Warren | Crew | Sound | Songs |
Al Herman | Cast | Actor | Second Waiter (uncredited) |
Al Lloyd | Cast | Actor | Radio Listener, with the Professors (uncredited) |
 Allen Jenkins | Cast | Actor | Joe Dirk |
 Ann Sheridan | Cast | Actress | Zelda Manion |
 Bert Hanlon | Cast | Actor | Arranger Johnny Collins (uncredited) |
 Bobby Sherwood | Cast | Actor | Announcer (uncredited) |
Cliff Saum | Cast | Actor | Radio Announcer Starting Program (uncredited) |
Daisy Bufford | Cast | Actress | Daisy, Zelda's Maid (uncredited) |
 David Newell | Cast | Actor | Attorney at Defense Table (uncredited) |
 Dick Powell | Cast | Actor | Professor Donald Hardwick |
Eddie Graham | Cast | Actor | Attorney at Plaintiff's Table (uncredited) |
 Edward McWade | Cast | Actor | Professor Trill (uncredited) |
Elise Cavanna | Cast | Pansey, Hardwick Maid (uncredited) | |
Elizabeth Dunne | Cast | Actress | Aunt Henrietta Hardwick |
Ernest Wood | Cast | Actor | First Headwaiter (uncredited) |
 Frank Mayo | Cast | Actor | Frank, Superior Court Bailiff (uncredited) |
 Gale Page | Cast | Actress | Linda McKay |
 Garry Owen | Cast | Actor | Bartender (uncredited) |
 Glen Cavender | Cast | Actor | Extra at Bar (uncredited) |
 Grady Sutton | Cast | Actor | Mr. Mankton (uncredited) |
 Granville Bates | Cast | Actor | Judge Kennith B. Walters, Superior Court |
 Halliwell Hobbes | Cast | Actor | Dean Burton, Winfield College |
Harrison Greene | Cast | Actor | Second Bartender Making Phone Call (uncredited) |
 Helen Broderick | Cast | Actress | Aunt Martha Hogan |
 Herbert Rawlinson | Cast | Actor | Hardwick's Attorney (uncredited) |
 Hobart Cavanaugh | Cast | Actor | Clark's Piano Tuner (uncredited) |
 Jack Mower | Cast | Actor | Professor Listening to Radio (uncredited) |
 Jerry Colonna | Cast | Actor | Allie Gray |
 Jerry Mandy | Cast | Actor | First Waiter (uncredited) |
 John Harron | Cast | Actor | Freddie, Court Clerk (uncredited) |
 John Ridgely | Cast | Actor | Harry, Hudson's Assistant (uncredited) |
 Larry Steers | Cast | Actor | Extra in Nightclub (uncredited) |
 Leo White | Cast | Actor | Extra in Courtroom (uncredited) |
 Luis Alberni | Cast | Actor | Stanislaus Pysinski |
 Maurice Cass | Cast | Actor | Mr. Maurice, First Witness (uncredited) |
 Maxie Rosenbloom | Cast | Actor | Killer |
Midgie Dare | Cast | Jitterbug Dancer (uncredited) | |
 Nat Carr | Cast | Actor | Extra in Nightclub (uncredited) |
 Ronald Reagan | Cast | Actor | Eddie |
Sally Sage | Cast | Miss Danning (uncredited) | |
 Selmer Jackson | Cast | Actor | Plaintiff's Attorney (uncredited) |
 Sidney Bracey | Cast | Actor | Professor Listening to Radio (uncredited) |
 Sol Gorss | Cast | Actor | Taxi Driver (uncredited) |
 Stuart Holmes | Cast | Actor | Capt. Gregory Waddington-Smith (uncredited) |
 Vera Lewis | Cast | Actress | Aunt Annabella Hardwick |
 Wedgwood Nowell | Cast | Actor | Professor Listening to Radio (uncredited) |
 William B. Davidson | Cast | Actor | Samuel 'Sam' 'Simsy' Hudson - Music Publisher |
 William Gould | Cast | Actor | Bailiff (uncredited) |
 William Newell | Cast | Actor | Arranger (uncredited) |
 Zasu Pitts | Cast | Actress | Aunt Penelope Hardwick |
Maxie Lee Dorf | Cast | Jitterbug Dancer (uncredited) | |
 Peter Lind Hayes | Cast | Actor | Bandleader in Nightclub (uncredited) |
| Person | Type | Job | Role(s) |
