The Four Men of the title are British WWI veterans who decide to work secretly against enemies of the country. They aren't above a bit of murder or sabotage to serve their ends, but they consider themselves to be true patriots.
| Directing | Walter Forde | Director |
| Writing | Edgar Wallace | Novel |
| Writing | Angus MacPhail | Writer |
| Writing | Sergei Nolbandov | Writer |
| Writing | Roland Pertwee | Writer |
| Production | Michael Balcon | Producer |
| Production | S.C. Balcon | Associate Producer |
| Sound | Ernest Irving | Music |
| Camera | Ronald Neame | Director of Photography |
| Editing | Charles Saunders | Editor |
| Art | Wilfred Shingleton | Art Direction |
