Harry Crumb is a bumbling and inept private investigator who is hired to solve the kidnapping of a young heiress which he's not expected to solve because his employer is the mastermind behind the kidnapping.
Unfortunately the movie Who's Harry Crumb? is not yet available on Disney Plus.
| Writing | Peter Wortmann | Screenplay |
| Sound | Michel Colombier | Original Music Composer |
| Writing | Robert Conte | Screenplay |
| Directing | Paul Flaherty | Director |
| Camera | Stephen M. Katz | Director of Photography |
| Production | Arnon Milchan | Producer |
| Production | John Candy | Executive Producer |
| Editing | Danford B. Greene | Editor |
| Crew | Dick Ziker | Stunts |
| Crew | Christine Anne Baur | Stunts |
| Crew | Manny Perry | Stunt Coordinator |
| Art | David Lewis | Greensman |
| Crew | Buddy Joe Hooker | Stunts |
| Crew | Michael A. Clifford | Special Effects Coordinator |
| Costume & Make-Up | Jan Newman | Makeup Artist |
| Costume & Make-Up | Susan A. Cabral | Makeup Artist |
| Costume & Make-Up | Beverly K. Sewers | Hairstylist |
| Costume & Make-Up | Susan Boyd | Hairstylist |
| Crew | Fred Hunchuk | Special Effects |
| Crew | Randy Shymkiw | Special Effects |
| Art | Elizabeth Wilcox | Set Decoration |
| Costume & Make-Up | Dione Taylor | Hairstylist |
| Visual Effects | Gene Grigg | Special Effects Supervisor |
| Production | George W. Perkins | Co-Producer |
| Costume & Make-Up | Jerry R. Allen | Costume Design |
| Costume & Make-Up | Ben Nye Jr. | Makeup Designer |
| Art | Trevor Williams | Production Design |
| Crew | Steve LaPorte | Makeup Effects |
| Costume & Make-Up | Dorothea Long | Hairstylist |
| Art | Stephen Geaghan | Art Direction |
| Production | Les Kimber | Associate Producer |
| Crew | Danny Rogers | Stunts |
| Production | Susan Bluestein | Casting Director |
| Sound | Ellen Segal | Music Editor |
| Directing | Christine Wilson | Script Supervisor |
| Art | Douy Swofford | Title Designer |
| Directing | Joyce Webb | Script Supervisor |