Cast (in credits order)
| Lloyd Nolan | ... | Commentator | |
| Rest of cast listed alphabetically: | |||
| Robert Adler | ... | Listener to Soapbox Orator (uncredited) | |
| Richard Alexander | ... | Listener to Soapbox Orator (uncredited) | |
| Robert Bailey | ... | Mike (uncredited) | |
| Felix Bressart | ... | Anti-Nazi Teacher (uncredited) | |
| Chick Chandler | ... | Con Artist (uncredited) | |
| George Chandler | ... | Sucker (uncredited) | |
| Albert Einstein | ... | Self (archive footage) (uncredited) | |
| Joseph Goebbels | ... | Self (archive footage) (uncredited) | |
| Adolf Hitler | ... | Self (archive footage) (uncredited) | |
| Martin Kosleck | ... | Nazi Orator (uncredited) | |
| Kurt Kreuger | ... | Hans (uncredited) | |
| Richard Lane | ... | Soapbox Orator (uncredited) | |
| Paul Lukas | ... | Hungarian Professor (uncredited) | |
| Frank O'Connor | ... | Listener to Soapbox Orator (uncredited) | |
| Robert R. Stephenson | ... | German Citizen (uncredited) | |
| George E. Stone | ... | Card Player (uncredited) | |
| Charles Tannen | ... | Mugger (uncredited) | |
| Ivan Triesault | ... | Priest (uncredited) | |
| Bobby Watson | ... | Adolf Hitler (uncredited) | |