| Person | Type | Job | Role(s) |
|---|---|---|---|
 Anton Grot | Crew | Art | Art Direction |
 Clifford Odets | Crew | Crew | Additional Writing |
Elliot Paul | Crew | Writing | Screenplay |
 Ernest Haller | Crew | Camera | Additional Photography |
Folmar Blangsted | Crew | Editing | Editor |
 George Gershwin | Crew | Sound | Songs |
 Hal B. Wallis | Crew | Production | Executive Producer |
Harry Chandlee | Crew | Crew | Additional Writing |
Howard Koch | Crew | Writing | Screenplay |
 Irving Rapper | Crew | Directing | Director |
 Jesse L. Lasky | Crew | Production | Producer |
John Hughes | Crew | Art | Art Direction |
 Max Steiner | Crew | Sound | Original Music Composer |
Merritt B. Gerstad | Crew | Camera | Additional Photography |
Milo Anderson | Crew | Costume & Make-Up | Costume Design |
Perc Westmore | Crew | Costume & Make-Up | Makeup Artist |
 Robert Rossen | Crew | Crew | Additional Writing |
Sol Polito | Crew | Camera | Director of Photography |
 Sonya Levien | Crew | Writing | Story |
 Ira Gershwin | Crew | Writing | Lyricist |
 Al Jolson | Cast | Actor | Al Jolson |
 Albert Bassermann | Cast | Actor | Prof. Franck |
 Alexis Smith | Cast | Actress | Christine Gilbert |
 Andrew Tombes | Cast | Actor | Mr. Million |
 Bill Kennedy | Cast | Actor | Herbert Stone |
 Charles Coburn | Cast | Actor | Max Dreyfus |
 Charles Halton | Cast | Actor | Mr. Kast |
 Charles Waldron | Cast | Actor | Doctor (uncredited) |
 Darryl Hickman | Cast | Actor | Ira Gershwin as a Boy |
 Eddie Marr | Cast | Actor | Buddy De Sylva |
 Elsa Maxwell | Cast | Actress | Elsa Maxwell (uncredited) |
Ernest Golm | Cast | Otto Kahn | |
George White | Cast | Actor | George White |
 Gower Champion | Cast | Actor | Tap Dancer at Remick's (uncredited) |
Gregory Golubeff | Cast | Mr. Katzman | |
 Hazel Scott | Cast | Actress | Hazel Scott |
 Herbert Rudley | Cast | Actor | Ira Gershwin |
 Joan Leslie | Cast | Actress | Julie Adams |
 Johnny Downs | Cast | Actor | Dancer |
 Julie Bishop | Cast | Actress | Lee Gershwin |
 Lynn Baggett | Cast | Actress | Guest (uncredited) |
 Mark Stevens | Cast | Actor | Steve (uncredited) |
Mickey Roth | Cast | George Gershwin as a Boy | |
 Morris Carnovsky | Cast | Actor | Morris Gershwin |
 Oscar Levant | Cast | Actor | Oscar Levant |
 Paul Whiteman | Cast | Actor | Paul Whiteman |
 Robert Alda | Cast | Actor | George Gershwin |
 Rosemary DeCamp | Cast | Actress | Rose Gershwin |
 Theodore von Eltz | Cast | Actor | Foley |
 Walter Soderling | Cast | Actor | Mr. Muscatel |
 Will Wright | Cast | Actor | Rachmaninoff |
John B. Hughes | Cast | Hughes | |
Martin Noble | Cast | Jascha Heifetz | |
Bernard DeRoux | Cast | Actor | Porter (uncredited) |
Oscar Loraine | Cast | Maurice Ravel | |
Hugo Kirchhoffer | Cast | Walter Damrosch | |
Anne Brown | Cast | Bess | |
| Person | Type | Job | Role(s) |
