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Walter Matthau as Joseph P. Kotcher |
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Deborah Winters as Erica Herzenstiel |
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Felicia Farr as Wilma Kotcher |
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Charles Aidman as Gerald Kotcher |
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Ellen Geer as Vera Kotcher |
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Donald Kowalski as Duncan Kotcher |
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Dean Kowalski as Duncan Kotcher |
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Arlen Stuart as Mrs. Fisher |
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Jane Connell as Miss Roberts |
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James Brodhead as Mr. Weaver |
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Jessica Rains as Dr. McKernan |
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Darrell Larson as Vincent Perrin |
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Biff Elliot as Motel Manager |
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Paul Picerni as Dr. Caudillo |
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Lucy Saroyan as Sissy |
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Kim Hamilton as Receptionist |
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Tamar Cooper as Nurse |
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Amzie Strickland as Film Narrator |
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Paul Fierro as Pablo |
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Larry Linville as Peter Stiel |
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Penny Santon as Mrs. Segura |
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Janya Braunt as Mrs. Pugh (uncredited) |
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Dee Carroll as Dorothy Ballinger (uncredited) |
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Bob Harks as Shopper (uncredited) |
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Jason Karpf as Trick-or-Treater (uncredited) |
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Jack Lemmon as Sleeping Bus Passenger (uncredited) |
| Directing | Jack Lemmon | Director |
| Production | Richard Carter | Producer |
| Writing | John Paxton | Screenplay |
| Writing | Katharine Topkins | Novel |
| Sound | Marvin Hamlisch | Original Music Composer |
| Production | Leon Chooluck | Production Supervisor |
| Camera | Kenneth Adams | Key Grip |
| Lighting | Tim Griffith | Gaffer |
| Lighting | James Plannette | Best Boy Lighting Technician |
| Camera | Eric D. Andersen | First Assistant Camera |
| Art | Ruth Carter | Location Scout |
| Camera | Ruth Carter | Still Photographer |
| Camera | James R. Connell | Camera Operator |
| Camera | Hal Shiffman | Second Assistant Camera |
| Camera | Robert Willoughby | Still Photographer |
| Costume & Make-Up | Connie Anderson | Wardrobe Supervisor |
| Editing | Jeremy Lepard | Additional Editing |
| Editing | Irving Rosenblum | Assistant Editor |
| Art | Jeremy Lepard | Title Designer |
| Camera | Richard H. Kline | Director of Photography |
| Editing | Ralph E. Winters | Editor |
| Production | Barbara Gallagher | Casting |
| Art | Jack Poplin | Art Direction |
| Art | William Kiernan | Set Decoration |
| Costume & Make-Up | John A. Anderson | Costume Design |
| Costume & Make-Up | Jean Austin | Hairdresser |
| Costume & Make-Up | Harry Ray | Makeup Artist |
| Directing | Charles Dismukes | Assistant Director |
| Directing | Harry F. Hogan | Assistant Director |
| Art | Richard M. Rubin | Props |
| Sound | Richard Portman | Recording Supervision |
| Sound | Jack Solomon | Sound |
| Sound | Frank E. Warner | Sound Effects |
| Crew | Jack Erickson | Special Effects |
| Visual Effects | Jeremy Lepard | Visual Effects |