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.
Unfortunately the movie Wonder Man is not yet available on HBO Max.
| Production | Samuel Goldwyn | Producer |
| Directing | H. Bruce Humberstone | Director |
| Camera | William E. Snyder | Director of Photography |
| Writing | Don Hartman | Screenplay |
| Writing | Melville Shavelson | Screenplay |
| Camera | Victor Milner | Director of Photography |
| Writing | Philip Rapp | Screenplay |
| Costume & Make-Up | Travis Banton | Costume Design |
| Art | Ernst Fegté | Art Direction |
| Art | Howard Bristol | Set Decoration |
| Editing | Daniel Mandell | Editor |
| Costume & Make-Up | Robert Stephanoff | Makeup Artist |
| Costume & Make-Up | Nina Roberts | Hairstylist |
| Writing | Eddie Moran | Adaptation |
| Sound | Ray Heindorf | Orchestrator |
| Writing | Jack Jevne | Adaptation |
| Writing | Arthur Sheekman | Original Story |
| Crew | John P. Fulton | Special Effects |
| Sound | Ray Heindorf | Conductor |
| Sound | Louis Forbes | Music Director |
| Crew | John Wray | Choreographer |
| Sound | David Rose | Songs |
| Writing | Sylvia Fine | Lyricist |
| Sound | Leo Robin | Songs |
| Sound | Sylvia Fine | Original Music Composer |
| Art | McClure Capps | Assistant Art Director |
| Sound | Fred Lau | Sound Recordist |
