Gus

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