The Secret Four
| MPAA Rating: | NR |
| Genre: | Drama, Mystery, Thriller |
| Country: | United Kingdom |
| Produced By: | Michael Balcon, S.C. Balcon |
| Directed By: | Walter Forde |
| Written By: | Roland Pertwee, Sergei Nolbandov, Angus MacPhail, Edgar Wallace |
| Cast: | Percy Parsons, Manning Whiley, Anna Lee, Percy Walsh, James Knight, Jon Pertwee, Alan Napier, Bryan Herbert, George Merritt, Lydia Sherwood, Roland Pertwee, Paul Sheridan, Francis L. Sullivan, Ellaline Terriss, Frederick Piper, Basil Sydney, Arthur Hambling, Griffith Jones, Athole Stewart, Charles Paton, Edward Rigby, Henrietta Watson, Winston Churchill, Frank Lawton, Liam Gaffney, Neal Arden, Hugh Sinclair, Eliot Makeham, Edward Chapman, Garry Marsh, Basil Radford |
| In Theaters: | Apr 21, 1940 |
| Runtime: | 1 hour 25 minutes |
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