Boisterous nightclub entertainer Buzzy Bellew was the witness to a murder committed by gangster Ten Grand Jackson. One night, two of Jackson's thugs kill Buzzy and dump his body in the lake at Prospect Park in Brooklyn. Buzzy comes back as a ghost and summons his bookworm twin, Edwin Dingle, to Prospect Park so that he can help the police nail Jackson.
You can now watch Wonder Man online on the following streaming providers in the United States.
| Directing | H. Bruce Humberstone | Director |
| Production | Samuel Goldwyn | Producer |
| Camera | Victor Milner | Director of Photography |
| Camera | William E. Snyder | Director of Photography |
| Writing | Don Hartman | Screenplay |
| Writing | Melville Shavelson | Screenplay |
| Writing | Philip Rapp | Screenplay |
| Editing | Daniel Mandell | Editor |
| Art | Ernst Fegté | Art Direction |
| Art | Howard Bristol | Set Decoration |
| Costume & Make-Up | Travis Banton | Costume Design |
| Costume & Make-Up | Nina Roberts | Hairstylist |
| Costume & Make-Up | Robert Stephanoff | Makeup Artist |
| Writing | Jack Jevne | Adaptation |
| Writing | Eddie Moran | Adaptation |
| Writing | Arthur Sheekman | Original Story |
| Sound | Ray Heindorf | Orchestrator |
| Sound | Ray Heindorf | Conductor |
| Sound | Louis Forbes | Music Director |
| Crew | John Wray | Choreographer |
| Crew | John P. Fulton | Special Effects |
| Sound | Fred Lau | Sound Recordist |
