 | Eugene Troobnick als Harvey Middleman (as Gene Troobnick) |
 | Hermione Gingold als Mrs. Koogleman |
 | Patricia Harty als Lois |
 | Arlene Golonka als Harriet |
 | Will Mackenzie als Dinny |
| Ruth Jaroslow als The Mother |
 | Charles Durning als Dooley |
| Peter Carew als Barratta |
| Stanley Myron Handelman als Mookey |
| Trudy Bordoff als Cindy |
| Neil Rouda als Richie |
| Gigi Chevalier als Comet Receptionist |
| Stacy Graham als Librarian |
| Maurice Shrog als Mr. Koogleman |
| Ernest Pintoff | Director |
| Ernest Pintoff | Writer |
| Robert L. Lawrence | Producer |
| Robert Gaffney | Associate Producer |
| Ernest Pintoff | Music |
| Karl Malkames | Cinematography |
| David Donovan | Editor |
| Hugh A. Robertson | Editor |
| Gene Callahan | Production Design |
| George DeTitta Sr. | Set Decoration |
| Marvin March | Set Decoration |
| Anna Hill Johnstone | Costume Design |
| Phil Naso | Hairstylist |
| Dick Smith | Makeup Artist |
| Roger M. Rothstein | Assistant Director |
| Jack Flaherty | Props |
| Jack Wright III | Props |
| Dennis Maitland | Sound Recordist |
| Dick Vorisek | Sound Recordist |
| Vincent Delaney | Electrician |
| Martin Nallan | Grip |
| Warren Rothenberger | Camera Operator |
| Maggie James | Script Supervisor |
| Dave Kahn | Music Editor |
| Jackson Beck | Dialogue Coach |
| Patricia Denise | Choreographer |
