George Coe

Self (archive footage) (uncredited)

Game Host (voice)

Self (archive footage)

Toza (voice)

Que / Wheeljack (voice)

Gene

Woodhouse (voice)

George's Dad

Tee Watt Kaa (voice)

George Parker

Stan

Father William Donlan

Pat Fremont

Ed Bullard

Steven Logan

Victor

Dr. Joshua Lee

William Clark

Warren Lauer

Joe Marks

General Manager

Grandpa Huntzberger

Dr. Sam Jenkins

Sam Hart

Sen. Jack Thompson

Howard Stackhouse

Herb

Father Biskup

Mr. Belt

Mr. Morgan

Peter Baines

Thomas Kendall

Judge Harold Waters

Dan Broadbent

Father Ferdo Vlasic

Mr. Braddock

Ernest

Judge Weathers

Dr. Feldman

Parker

Dad

Frank Parsons

Paul Berman

Lee Hastings

Sid Curley

Bill Page

Phil Kozinski

David

Chancellor Durken

Graham

Mr. Shelby

Ben Cheviot

Harry Gruen

Wallace Vance

Dr. Lucas Sinclair

Dr. Lansing

Gen. Scott Watson

Al

Senator Issel

Lou LaSalle

Old Man

Irving Jerome

Governor Lanford

Brian Haas

Dr. Stadler

Martin Bergman

Andrew Thayer

Peter Collingswood

Dr. Leggo

Max

Dick Novak

Maguire

John

Dr. Weber

Kannon Rush

Justin Phillips

Sherman

Rutledge

Col. Winn

Doctor Wilson T. Renfrew

George Mathews

Mayor Leroy Satrom

Benjamin Fisk

William Wainwright

Ed

Dr. Bernardi

Jim O'Connor

Mr. Weber

Fritz Longley

Various

Instructor (uncredited)

Spokesman (uncredited)

Husband (uncredited)

Announcer (uncredited)

Warden / Various (uncredited)

Walter Winchell (uncredited)

Security Guard / Extra (uncredited)

Epoxy-Dent Spokesman (uncredited)

Judge (uncredited)

Claude Axhelm

Sydney Hammer

Self / David

Viktor