Don Marshall

Dan Erickson

Heather Young

Betty Hamilton

Don Matheson

Mark Wilson

Stefan Arngrim

Barry Lockridge

Gary Conway

Steve Burton

Deanna Lund

Valerie Scott

Kurt Kasznar

Alexander B. Fitzhugh

Mike Mazurki

Loach

Don Collier

Mr. Bara

Alex Dreier

Kronig

George Mitchell

Harry Cass

Jay Novello

Okun

Doodles Weaver

Giant Hobo

Billy Halop

Bartender Harry

Wesley Lau

Policeman

Elizabeth Rogers

Secretary

Whit Bissell

Dr. Krane

Joan Freeman

Mara

Kimberly Beck

Giant Girl

Celeste Yarnall

Marna Whelan

Michael Ansara

Murtrah

Myron Healey

Second Giant

Vic Tayback

Hood

Michael Anderson Jr.

Ben Car

Tol Avery

Mr. Derg

Albert Salmi

Acteur

Lance LeGault

Giant Policeman

Fritz Feld

Quigg

Arthur Franz

Dr. Franzen

Broderick Crawford

Prof. Gorn

Charles Drake

Mr. Erdap

William Benedict

Villager Peabody

Jonathan Harris

Mr. Piper

Percy Helton

Akman

Zalman King

Nick

Vic Perrin

Giant Small Man Shoved by FitzHugh

Charles Dierkop

Arthur Kamber

Gene Dynarski

Warden Barmak

Howard Culver

Curator

Peter Haskell

Enog

Guy Stockwell

Garak

Peter Mark Richman

Dr. Marad

Yvonne Craig

Berna

Torin Thatcher

Dr. Berger

William Schallert

Dr. Arno

Clint Ritchie

Andros

Kent Taylor

Doc Jelko

Glenn Corbett

Major Kagan

Sugar Ray Robinson

Biff Bowers

Sam Elliott

Martin Reed

John Zaremba

Dr. Lalor

Kevin Hagen

Insp. Dobbs Kobick

Alfred Ryder

Parteg

Peter Leeds

Senator

Peter Jason

Mylo

Arthur Batanides

Luigi

Paul Carr

Giant Photographer

Norman Burton

Sergeant

John Abbott

Prof. Gorak

Larry Ward

Talf Ekorb

Ben Blue

Moley

Len Lesser

Prisoner

Robert H. Harris

Uncle Tojar

Bob Braun

Balloon Vendor

John Marley

Deputy Zarkin

Madlyn Rhue

Bertha Fry

Lane Bradford

Lobo

Harry Lauter

Policeman

Jerry Douglas

Fielder

Mort Mills

Constable

John Crawford

Acteur

Diane McBain

Mrs. Evers

John Pickard

Giant Guard

Raymond Guth

Tramp

Stuart Margolin

Zoral

John Carradine

Egor Crull

Ed Peck

Mike Warkin

Nehemiah Persoff

Titus

John Milford

Ranger Wilson

Don Kennedy

Policeman

Alan Bergmann

Krenko

Alan Hale Jr.

O'Reilly

Anne Seymour

Martha Cass

Arch Johnson

Chief Rivers

Bill Fletcher

Sgt. Karf

Bill Quinn

Warden Sloan

Bruce Dern

Thorg

Buddy Foster

Tedar

C. Lindsay Workman

Cunningham - Jeweler

Chris Alcaide

Sgt. Arnak

Christopher Cary

Deenar

Cliff Osmond

Grotius

Dennis Cross

Giant Policeman

Denver Mattson

Sergeant

Diana Chesney

Nell

Don 'Red' Barry

Dr. Zoral

Eddie Marr

Peddler Brynie

Edward G. Robinson Jr.

SID Guard Rogers

Erik L. Nelson

SID Man

Francine York

Dr. North

Frank Ferguson

Goalby

Garry Walberg

SID Man

Gary Dubin

Dal Ekorb

Henry Corden

Janitor

Jack Albertson

Inidu

James Jeter

Gateman

Jan Shepard

Osla Ekorb

Janos Prohaska

Gorilla

Jean-Michel Michenaud

Pepi

Jerry Catron

Giant Sentry

Jesse White

Max Manfred

Jim Gosa

Giant Guard

Joe Turkel

Sergeant

John Dehner

Lieutenant Grayson

John Harmon

Groom

John Mooney

Pharmacist

Joseph Ruskin

Carlos

June Dayton

Mrs. Perkins

Larry Pennell

Guard

Lee Meriwether

Mrs. Bara

Leonard Stone

Dr. Kraal

Linden Chiles

Joe / Logar

Louise Lorimer

Miss Smith

Malachi Throne

Taru

Michael-James Wixted

Timmy

Morgan Jones

Assistant Scientist

Olan Soule

Cameraman

Oliver McGowan

Dr. Howard

Parley Baer

Senator Obek

Patrick Sullivan Burke

Golan

Paul Fix

Dr. Brulle

Paul Sorensen

Giant Camper

Paul Trinka

Giant Guard

Pete Kellett

Guard

Rex Holman

Mezron

Richard Anderson

Joe Simmons

Rico Cattani

SID Man

Robert Adler

Villager Sloacum

Robert Cornthwaite

Machine (voice)

Robert F. Lyons

Nalor

Robert Hogan

Brady

Robert Shayne

Mr. Clinton

Ron Howard

Jodar

Sandra Giles

Dr. Greta Gault

Sheila Allen

Nurse Helg

Susan Howard

Mrs. Garak

Ted Jordan

Policeman

Timothy Scott

Trilling

Tom Drake

SID Sergeant

Tom Reese

Sgt. Gedo

Tom Webb

Dolf

Victoria Vetri

Lisa

Warren Stevens

Capt. Ashim

Willard Sage

Hook

William Bramley

First Giant

Yale Summers

Andre