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Ron Howard as Ned De Vries |
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Art Carney as Walter Peary |
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Tarah Nutter as Kate De Vries |
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David Knell as Brandon |
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Barry Corbin as Dr. Agajanian |
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Richard Dysart as Dr. Morton Freeman |
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Michael Bond as Dr. Bill DeJong |
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Jim Haynie as Doc Vandecamp |
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Robert Hirschfeld as Harold |
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G.W. Bailey as Jim Laszlo |
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Robert Behling as Art |
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Ken Hixon as Williams |
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Dwight Schultz as Schlatter |
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Joe Miksak as Al |
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Charlotte Stewart as Mrs. Laszlo |
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Will Marchetti as Farmer #3 |
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Ross McKerras as Man #1 |
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Terry David Mulligan as Man #2 |
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Frank Papia as Plant Manager |
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John Argue as Chairman |
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Al Cingolani as Harley |
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Linda Stuart as Secretary |
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Matthew Locricchio as Worker |
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Christopher Kriesa as Marshall |
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J.E. Freeman as Farmer #2 |
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Bill Reddick as |
| Art | Bryan Ryman | Art Direction |
| Costume & Make-Up | Denita Del Signore | Costumer |
| Costume & Make-Up | Frank Novak | Costumer |
| Production | Tony Ganz | Producer |
| Writing | Richard Friedenberg | Teleplay |
| Camera | Gayne Rescher | Director of Photography |
| Editing | Thomas Fries | Editor |
| Art | Ray Molyneaux | Set Decoration |
| Production | Charles W. Fries | Executive Producer |
| Writing | Frederic Halbert | Book |
| Directing | Roger Young | Director |
| Writing | Sandra Halbert | Book |
| Sound | Fred Karlin | Original Music Composer |
| Crew | Frank Moorehead | Stunt Double |
| Production | Judith Holstra | Casting |
| Production | Robert S. Mendelsohn | Unit Production Manager |
| Directing | Craig Huston | First Assistant Director |
| Directing | Joseph J. Kontra | Second Assistant Director |
| Production | Marcia Ross | Casting Assistant |
| Lighting | Romolo Acquistapace | Gaffer |
| Camera | Gene Griffith | Key Grip |
| Art | Roy 'Bucky' Moore | Property Master |
| Crew | Andrew Overholtzer | Special Effects |
| Sound | Charles T. Knight | Sound Mixer |
| Camera | Jonathan West | Camera Operator |
| Camera | Harvey Genkins | Camera Operator |
| Camera | Catherine E. Coulson | Assistant Camera |
| Directing | Frank Tudisco | Script Supervisor |
| Costume & Make-Up | James R. Kail | Makeup Artist |
| Costume & Make-Up | Shanon Ely | Hairdresser |
| Editing | John A. Barton | Assistant Editor |
| Sound | John Fresco | Music Supervisor |
| Sound | John Mick | Music Editor |
