| Person | Type | Job | Role(s) |
|---|---|---|---|
 A. Arnold Gillespie | Crew | Crew | Special Effects |
 Ben Libizer | Crew | Costume & Make-Up | Makeup Artist |
 Cedric Gibbons | Crew | Art | Art Direction |
 Douglas Shearer | Crew | Sound | Recording Supervision |
 Harold Rosson | Crew | Camera | Director of Photography |
 King Vidor | Crew | Directing | Director, Producer, Story |
Louis Gruenberg | Crew | Sound | Original Music Composer |
William Ludwig | Crew | Writing | Screenplay |
John Cooney | Crew | Lighting | Electrician |
 Ann Richards | Cast | Actress | Anna O'Rourke Dangos |
 Axel Anderson | Cast | Actor | Immigrant (uncredited) |
Bob Lowell | Cast | Actor | George Washington Dangos |
 Brian Donlevy | Cast | Actor | Stefan Dubechek aka Steve Dangos |
 Byron Foulger | Cast | Actor | High School Principal (uncredited) |
 Charles Bates | Cast | Actor | Teddy Roosevelt Dangos - Age 8 (uncredited) |
 Erville Alderson | Cast | Actor | Olson - Detroit Auto Works Technician (uncredited) |
 Fred Aldrich | Cast | Actor | Assembly Line Worker (uncredited) |
 John Qualen | Cast | Actor | Anton Dubechek |
Mary McLeod | Cast | Actress | Katina 'Tina' Dangos |
 Noreen Nash | Cast | Actress | Vaudeville act (uncredited) |
 Stephen McNally | Cast | Actor | Teddy Roosevelt Dangos / Narrator |
 Walter Abel | Cast | Actor | Howard Clinton |
Sue Moore | Cast | Actress | Minor Role (uncredited) |
| Person | Type | Job | Role(s) |
