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Steve Martin as Dr. Michael Hfuhruhurr |
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Kathleen Turner as Dolores Benedict |
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David Warner as Dr. Alfred Necessiter |
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Paul Benedict as Butler |
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Richard Brestoff as Dr. Pasteur |
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James Cromwell as Realtor |
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George Furth as Timon |
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Peter Hobbs as Dr. Brandon |
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Earl Boen as Dr. Felix Conrad |
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Bernie Hern as Gun Seller |
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Francis X. McCarthy as Olsen |
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William Traylor as Inspector |
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Randi Brooks as Fran |
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Bernard Behrens as James Gladstone |
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Natividad Vacío as Ramon |
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David Byrd as Desk Clerk |
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Adrian Ricard as Nurse in Room |
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Sparky Marcus as Bellboy |
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Perla Walter as Housekeeper |
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Mya Stark as Little Girl |
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Don McLeod as Dr. Schlermie Beckerman / Gorilla |
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Peter Elbling as Morgue Attendant |
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Kate Sarchet as Hooker #2 |
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Wendy Sherman as Hooker #3 |
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Tom Spratley as Minister |
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Estelle Reiner as Tourist in Elevator |
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Jeffrey Combs as Dr. Jones |
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Jenny Gago as Nurse #1 |
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Haunani Minn as Nurse Breen |
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Stepfanie Kramer as Beautiful Girl Hit by Car |
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George Fisher as Patrol Car Officer |
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Merv Griffin as The Elevator Killer |
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Bob Harks as Lecture Guest (uncredited) |
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სისი სპეისეკი as Anne Uumellmahaye (uncredited) (voice) |
| Editing | Bud Molin | Editor |
| Production | William E. McEuen | Producer |
| Directing | Carl Reiner | Director |
| Camera | Michael Chapman | Director of Photography |
| Crew | Jeannie Epper | Stunts |
| Crew | Eurlyne Epper | Stunts |
| Production | David V. Picker | Producer |
| Art | Mark W. Mansbridge | Production Design |
| Art | Mark W. Mansbridge | Art Direction |
| Art | Bruce A. Gibeson | Set Decoration |
| Costume & Make-Up | Kathryn Blondell | Hairstylist |
| Production | Bill Badalato | Production Manager |
| Sound | Joel Goldsmith | Original Music Composer |
| Production | Marion Dougherty | Casting |
| Crew | Lance Anderson | Makeup Effects |
| Writing | George Gipe | Writer |
| Costume & Make-Up | Ric Sagliani | Makeup Artist |
| Production | Dianne Young | Casting |
| Costume & Make-Up | E. Thomas Case | Makeup Artist |
| Writing | Carl Reiner | Writer |
| Writing | Steve Martin | Writer |
| Crew | Gary McLarty | Stunts |
| Camera | Ron Frantzvog | Second Assistant Camera |
| Art | Polly Platt | Production Design |
| Crew | John Robotham | Stunts |
| Crew | George Fisher | Stunts |
| Crew | Louie Elias | Stunts |
| Crew | Joe Dunne | Stunt Coordinator |
| Crew | Gary Epper | Stunts |