| Person | Type | Job | Role(s) |
|---|---|---|---|
 Bobby Connolly | Crew | Crew | Choreographer |
 Cedric Gibbons | Crew | Art | Art Direction |
Dolly Tree | Crew | Costume & Make-Up | Costume Design |
 Douglas Shearer | Crew | Sound | Recording Supervision |
 E.Y. Harburg | Crew | Writing | Lyricist |
 Edward Buzzell | Crew | Directing | Director |
 Edwin B. Willis | Crew | Art | Set Decoration |
 Franz Waxman | Crew | Sound | Original Music Composer, Music Director |
 Harold Arlen | Crew | Sound | Songs |
Irving Brecher | Crew | Writing | Screenplay |
Leonard Smith | Crew | Camera | Director of Photography |
 Mervyn LeRoy | Crew | Production | Producer |
Stan Rogers | Crew | Art | Assistant Art Director |
Fred Valles | Crew | Costume & Make-Up | Costume Design |
William H. Terhune | Crew | Editing | Editor |
 Barnett Parker | Cast | Actor | Whitcomb |
Betsy Gay | Cast | Undetermined Role (uncredited) | |
Bobby Hale | Cast | Actor | Train Passenger (uncredited) |
Buck Mack | Cast | Checkers Player (uncredited) | |
 Carl M. Leviness | Cast | Actor | Club Car Train Passenger (uncredited) |
 Charles Gemora | Cast | Actor | Gibraltar (uncredited) |
 Chico Marx | Cast | Actor | Antonio Pirelli |
 Dudley Dickerson | Cast | Actor | Singer / Dancer - 'Swingali' (uncredited) |
 Edmund Mortimer | Cast | Actor | Governor (uncredited) |
 Emory Parnell | Cast | Actor | Ringmaster (uncredited) |
 Eve Arden | Cast | Actress | Peerless Pauline |
 Florence Rice | Cast | Actress | Julie Randall |
 Forbes Murray | Cast | Actor | Captain (uncredited) |
 Frank Darien | Cast | Actor | Telegrapher (uncredited) |
 Frank Orth | Cast | Actor | Chef in Diner (uncredited) |
Fred Walburn | Cast | Actor | Undetermined Role (uncredited) |
 Fritz Feld | Cast | Actor | Jardinet |
George Bookasta | Cast | Member of Quarttete (uncredited) | |
 Groucho Marx | Cast | Actor | Attorney J. Cheever Loophole |
 Harpo Marx | Cast | Actor | 'Punchy' |
 Harry Hayden | Cast | Actor | Conductor (uncredited) |
Henry Blair | Cast | Undetermined Role (uncredited) | |
 Irving Bacon | Cast | Actor | Telegraph Clerk (uncredited) |
 James Burke | Cast | Actor | John Carter |
 James Conaty | Cast | Actor | Party Guest (uncredited) |
 Jerry Maren | Cast | Actor | Little Professor Atom (as Jerry Marenghi) |
John Binns | Cast | Actor | Old Man (uncredited) |
 John George | Cast | Actor | Man Leaving Diner (uncredited) |
 Kenny Baker | Cast | Actor | Jeff Wilson |
 Larry Steers | Cast | Actor | Party Guest (uncredited) |
 Lillian Randolph | Cast | Actress | Black Woman - 'Swingali' (uncredited) |
 Margaret Dumont | Cast | Actress | Mrs. Suzanna Dukesbury |
 Matt McHugh | Cast | Actor | Cabbie (uncredited) |
 Murdock MacQuarrie | Cast | Actor | Attendant (uncredited) |
 Nat Pendleton | Cast | Actor | Goliath |
Payne B. Johnson | Cast | Boy at Circus (uncredited) | |
Robert Winkler | Cast | Actor | Undetermined Role (uncredited) |
 Shep Houghton | Cast | Actor | Circus Patron (uncredited) |
 Stuart Hall | Cast | Actor | Circus Patron (uncredited) |
 Willie Best | Cast | Actor | Redcap (uncredited) |
Hazel Dohlman | Cast | Party Guest (uncredited) | |
| Person | Type | Job | Role(s) |
