 | Gene Wilder Stanley |
 | Zero Mostel John |
 | Karen Black Daisy |
 | Joe Silver Norman |
 | Robert Weil Carl |
 | Marilyn Chris Mrs. Bingham |
 | Percy Rodriguez Mr. Nicholson |
 | Robert Fields Young Man |
| Melody Santangello Young Woman |
 | Don Calfa Waiter |
 | Lou Cutell Cashier |
 | Howard Morton Doctor |
| Manuel Aviles Busboy |
 | Anne Ramsey Lady with Cat |
 | Lorna Thayer Restaurant Owner |
 | Sheryl Deauville Woman in Black with Baby Carriage (uncredited) |
| Directing | |
| Tom O'Horgan | Director |
Writing | |
| Eugène Ionesco | Theatre Play |
| Julian Barry | Screenplay |
Production | |
| Mort Abrahams | Executive Producer |
| Ely A. Landau | Producer |
| Edward Lewis | Executive Producer |
| Henry T. Weinstein | Executive Producer |
| Robert A. Goldston | Supervising Producer |
Sound | |
| Galt MacDermot | Music |
Camera | |
| James Crabe | Director of Photography |
Editing | |
| Bud S. Smith | Editor |
Production | |
| Lynn Stalmaster | Casting |
Art | |
| Jack Martin Smith | Production Design |
| Norman Rockett | Set Decoration |
| Darrell Silvera | Set Decoration |
Costume & Make-Up | |
| Noel Taylor | Costume Design |
| Dee-Dee Petty | Hairstylist |
| Jack Petty | Makeup Artist |
Production | |
| Irving Temaner | Production Supervisor |
Directing | |
| Robert Enrietto | Assistant Director |
| R. Robert Rosenbaum | Assistant Director |
Art | |
| Douglas Stubbs | Property Master |
Sound | |
| Robert 'Buzz' Knudson | Sound Mixer |
| Richard Overton | Sound Mixer |
| Roger Sword | Sound Editor |
| Charles L. Campbell | Supervising Sound Editor |
Crew | |
| Bob Dawson | Special Effects |
| Jesse Wayne | Stunts |
Camera | |
| Hugh K. Gagnier | Camera Operator |
Lighting | |
| Tim Griffith | Gaffer |
Camera | |
| Robert Marta | Assistant Camera |
| John Murray | Key Grip |
| Marcia Reed | Still Photographer |
Editing | |
| Ross Levy | Assistant Editor |
