The Mystery of Mr. X
| MPAA Rating: | NR |
| Genre: | Comedy, Crime, Mystery, Romance |
| Country: | United States |
| Produced By: | Lawrence Weingarten |
| Directed By: | Richard Boleslawski, Edgar Selwyn |
| Written By: | James Kevin McGuinness, Howard Emmett Rogers, Monckton Hoffe, Philip MacDonald |
| Cast: | Olaf Hytten, Ivan F. Simpson, Norman Ainsley, Lewis Stone, Harrington Reynolds, Alfred Cross, Ted Billings, Charles Irwin, Ralph Forbes, Henry Mowbray, Captain Francis, Robert Montgomery, Richard Lancaster, Elizabeth Allan, Forrester Harvey, Pat Somerset, Alec B. Francis, Leonard Mudie, Pat Moriarity, Pearl Varvalle, Clive Morgan, Douglas Gordon, Barlowe Borland, Henry Stephenson, Raymond Lawrence, Colin Kenny, Milton Royce, John Power, William Stack, Robert Adair, Victor Gammon, Eric Wilton, Carl Harbord, C. Montague Shaw |
| In Theaters: | Feb 23, 1934 |
| Runtime: | 1 hour 24 minutes |
| Production: | MGM |
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