 | Ed Asner Hank Cooper |
 | Don Knotts Coach Venner |
 | Gary Grimes Andy Petrovic |
 | Tim Conway Crankcase |
 | Louise Williams Debbie Kovac |
 | Dick Van Patten Cal Wilson |
 | Ronnie Schell Joe Barnsdale |
 | Bob Crane Pepper |
 | Johnny Unitas Himself |
 | Dick Butkus Rob Cargil |
 | Harold Gould Charles Gwynn |
 | Tom Bosley Spinner |
 | Virginia O'Brien Reporter |
 | Kenneth Tobey Asst. Warden |
 | Richard Kiel Tall Man |
 | Dick Enberg Atoms' Announcer |
 | Fred Dryer Atoms player (sideline & showers) (uncredited) |
 | Liam Dunn Dr. Morgan |
 | Warde Donovan Butcher |
 | Larry Burrell Locker Room Announcer |
 | Titos Vandis Seth Petrovic |
 | Hanna Landy Molly Petrovic |
| Irwin Charone Hotel Clerk |
 | Timothy Brown Calvin Barnes |
 | Jackson Bostwick Stjepan Petrovic |
 | John Orchard Pemberton Captain |
 | Larry McCormick N.Y. Broadcaster |
 | Jack Manning Mayor |
 | Jeanne Bates Nurse |
| Directing | |
| Vincent McEveety | Director |
Art | |
| Al Roelofs | Art Direction |
Writing | |
| Don Nelson | Screenplay |
Production | |
| Ron Miller | Producer |
Visual Effects | |
| Art Cruickshank | Visual Effects |
| Eustace Lycett | Visual Effects |
Art | |
| John B. Mansbridge | Art Direction |
Visual Effects | |
| Harrison Ellenshaw | Visual Effects |
Camera | |
| Frank V. Phillips | Director of Photography |
Visual Effects | |
| Danny Lee | Visual Effects |
Writing | |
| Ted Key | Story |
| Arthur Alsberg | Screenplay |
Sound | |
| Walter Sheets | Orchestrator |
| Herb Taylor | Sound |
Art | |
| Frank R. McKelvy | Set Decoration |
Production | |
| Christopher Hibler | Associate Producer |
Sound | |
| Robert F. Brunner | Original Music Composer |
Editing | |
| Robert Stafford | Editor |
Sound | |
| Frank Regula | Sound Mixer |
Crew | |
| Buddy Joe Hooker | Stunt Coordinator |
