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.
| Camera | William E. Snyder | Director of Photography |
| Directing | H. Bruce Humberstone | Director |
| Camera | Victor Milner | Director of Photography |
| Production | Samuel Goldwyn | Producer |
| Writing | Don Hartman | Screenplay |
| Writing | Melville Shavelson | Screenplay |
| Writing | Philip Rapp | Screenplay |
| Art | Ernst Fegté | Art Direction |
| Costume & Make-Up | Robert Stephanoff | Makeup Artist |
| Costume & Make-Up | Travis Banton | Costume Design |
| Costume & Make-Up | Nina Roberts | Hairstylist |
| Editing | Daniel Mandell | Editor |
| Art | Howard Bristol | Set Decoration |
| Writing | Jack Jevne | Adaptation |
| Writing | Eddie Moran | Adaptation |
| Writing | Arthur Sheekman | Original Story |
| Sound | Ray Heindorf | Orchestrator |
| Sound | Louis Forbes | Music Director |
| Crew | John P. Fulton | Special Effects |
| Sound | Ray Heindorf | Conductor |
| Crew | John Wray | Choreographer |
| Writing | Sylvia Fine | Lyricist |
| Sound | Sylvia Fine | Original Music Composer |
| Sound | Leo Robin | Songs |
| Sound | David Rose | Songs |
| Art | McClure Capps | Assistant Art Director |
| Sound | Fred Lau | Sound Recordist |
