| Gene Wilder | George Caldwell |
| Jill Clayburgh | Hilly Burns |
| Richard Pryor | Grover Muldoon |
| Patrick McGoohan | Roger Devereau |
| Ned Beatty | Bob Sweet |
| Clifton James | Sheriff Oliver Chauncey |
| Ray Walston | Mr. Edgar Whiney |
| Stefan Gierasch | Prof. Schreiner & Johnson |
| Len Birman | Chief Donaldson |
| Valerie Curtin | Plain Jane |
| Director | Arthur Hiller |
| Producer | Edward K. Milkis; Thomas L. Miller |
| Writer | Colin Higgins |
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