Undercover Doctor (1939) — Cast
Cast
| Janice Logan | Hopkins |
| Lloyd Nolan | Anders |
| J. Carrol Naish | Bartley Murnaghan |
| Richard Carle | Elmer |
| Heather Angel | Cynthia |
| Broderick Crawford | Krator |
| Robert Wilcox | Tom |
| George Meeker | Dapper Laughs |
| Stanley Price | Johnny Mo |
| Raymond Hatton | Dizzy |
| Paul Fix | Jackson |
| John Eldredge | Kingsley Shacklebolt |
| Clem Bevans | Sam |
| Phil Warren | Edwards |
| Paul Stanton | Courtney |
| Rosemary Theby | (uncredited) |
| Paul E. Burns | Belton |
| Richard Denning | Frank |
| Charles Trowbridge | Watson |
| Charles Williams | Pinky |
Crew
| William R. Lipman | Writer |
| J. Edgar Hoover | Book |
| Horace McCoy | Writer |
| Louis King | Director |