Kurt Russell

Dexter Riley

Joe Flynn

Dean Higgins

Eve Arden

Harriet

Cesar Romero

A.J. Arno

Phil Silvers

Krinkle

Dick Van Patten

Harry

Harold Gould

Dietz

Michael McGreevey

Schuyler

Richard Bakalyan

Cookie

William Schallert

Prof. Quigley

Benson Fong

Ah Fong

James Gregory

Chief Blair

John Debney

John (Student)

Derrel Maury

Hector (Student)

David R. Ellis

David (Student)

Roy Roberts

Mr. Roberts

Fritz Feld

Uncle Frederick

Ronnie Schell

Referee

Raymond Bailey

Regent Burns

Dick Patterson

Mr. Secretary

Larry Gelman

Larry

Kathleen Freeman

Officer Hurley

Ned Wertimer

Mr. Parsons

Milton Frome

Mr. Lufkin

Laurie Main

Mr. Reedy

Mary Treen

Mercedes

Eddie Quillan

Mr. Willoughby

Burt Mustin

Regent Appleby

Arthur Space

Regent Shaw

Bill Zuckert

Policeman

Larry J. Blake

Pete

William Bakewell

Professor

Art Metrano

TV Color Man

Lennie Weinrib

State Coach

Francis De Sales

Regent (uncredited)

Harry Holcombe

Regent (uncredited)

John Holland

Regent (uncredited)

Gordon Jump

Krinkle Krunch Executive (uncredited)

Jack Perkins

School Security Guard (uncredited)

Cosmo Sardo

Crumply Crunch Executive (uncredited)

Jeffrey Sayre

Crumply Crunch Executive (uncredited)

Larry Franco

Larry (Student)

Jonathan Daly

T.V. Announcer

Lomax Study

Krinkle Krunch Executive (uncredited)

Roger Callard

Weightlifter Kawaski