Gene Barry

Clayton Forrester

Ann Robinson

Sylvia Van Buren

Lewis Martin

Matthew Collins

Les Tremayne

General Mann

Frank Kreig

Fiddler Hawkins (uncredited)

Vernon Rich

Ralph Heffner

Sandro Giglio

Dr. Bilderbeck

Ann Codee

Dr. Duprey (uncredited)

Robert Cornthwaite

Dr. Pryor

Cedric Hardwicke

Commentary (voice)

Houseley Stevenson Jr.

General Mann's Aide

William Phipps

Wash Perry

Jack Kruschen

Salvatore

Paul Birch

Alonzo Hogue (uncredited)

Paul Frees

Second Radio Reporter / Opening Announcer

Henry Brandon

Cop at Crash Site

Peter Adams

Pine Summit Fire Watcher (uncredited)

Eric Alden

Man (uncredited)

Hugh Allen

Brigadier General (uncredited)

Ruth Barnell

Mother (uncredited)

Edgar Barrier

Prof. McPherson (uncredited)

Russ Bender

Dr. Carmichael (uncredited)

Oscar Blank

Man in Church (uncredited)

Hazel Boyne

Screaming Woman (uncredited)

Chet Brandenburg

Man in Church (uncredited)

George Bruggeman

Soldier (uncredited)

Nora Bush

Woman in Church (uncredited)

Tony Butala

Boy in Final Church (uncredited)

Mushy Callahan

Burning Soldier at Pit (uncredited)

Dick Cherney

Looter (uncredited)

Edward Colmans

Spanish Priest (uncredited)

James Conaty

Man at Pacific Institute of Science and Technology (uncredited)

Russ Conway

Rev. Bethany (uncredited)

Martin Coulter

Marine Sergeant (uncredited)

Vittorio Cramer

First Radio Reporter (uncredited)

Pierre Cressoy

Frenchman (uncredited)

Oliver Cross

Scientist (uncredited)

Jane Crowley

Woman in Church (uncredited)

Jim Davies

Marine Commanding Officer (uncredited)

Helen Dickson

Woman in Church (uncredited)

Ralph Dumke

Buck Monahan (uncredited)

Jimmie Dundee

Civil Defense Official (uncredited)

Al Ferguson

Police Chief (uncredited)

Dick Fortune

Marine Captain (uncredited)

Alex Frazer

Dr. James (uncredited)

Frank Freeman Jr.

Bum #2 Listening to Radio (uncredited)

Slim Gaut

Radio Listener (uncredited)

Charles Gemora

Martian (uncredited)

Ned Glass

Well-Dressed Looter (uncredited)

Jack Gordon

Man in Church (uncredited)

Fred Graham

Looter (uncredited)

Joe Gray

Looter (uncredited)

Herman Hack

Worker Listening to Radio (uncredited)

Nancy Hale

Young Wife (uncredited)

Virginia Hall

Girl (uncredited)

Ted Hecht

KGEB Reporter (uncredited)

Douglas Henderson

Staff Sergeant (uncredited)

Gertrude Hoffmann

Elderly News Vendor (uncredited)

Tex Holden

Man in Church (uncredited)

Jimmie Horan

Party Guest (uncredited)

Patricia Iannone

Girl (uncredited)

Jerry James

Reporter (uncredited)

Michael Jeffers

Worker Listening to Radio (uncredited)

Dick Johnstone

Man in Church (uncredited)

Carolyn Jones

Blonde Party Guest (uncredited)

Don Kohler

Colonel (uncredited)

Ivan Lebedeff

Dr. Gratzman (uncredited)

Freeman Lusk

Secretary of Defense (uncredited)

Herbert Lytton

Chief of Staff (uncredited)

Wilbur Mack

Official (uncredited)

George Magrill

Traffic Cop (uncredited)

Mike Mahoney

Townsman (uncredited)

John Mansfield

Man (uncredited)

Joel Marston

Military Policeman in Jeep (uncredited)

Sydney Mason

Fire Chief, Crew #3 (uncredited)

John Maxwell

Doctor (uncredited)

Mathew McCue

Man in Church (uncredited)

David McMahon

Minister, First Church (uncredited)

William Meader

P.E. Official (uncredited)

Lee Miller

Reporter (uncredited)

Ralph Montgomery

Los Angeles Red Cross Official (uncredited)

Alvy Moore

Zippy (uncredited)

Bob Morgan

Injured Civil Defense Worker (uncredited)

Charles Morton

Worker Listening to Radio (uncredited)

George Nardelli

Military Officer (uncredited)

Stanley Orr

Marine Major (uncredited)

George Pal

Bum #1 Listening to Radio (uncredited)

Walter Richards

Reporter (uncredited)

Robert Rockwell

Forest Ranger at Crash Site (uncredited)

Walter Sande

Sheriff Bogany (uncredited)

James Seay

Air Force Bomber Pilot (uncredited)

Allen D. Sewall

Man in Church (uncredited)

Lucile Sewall

Woman in Church (uncredited)

Cora Shannon

Old Woman (uncredited)

David Sharpe

Looter (uncredited)

Teru Shimada

Japanese Diplomat (uncredited)

Reginald Lal Singh

Military Officer (uncredited)

Bobby Somers

Deputy at Crash Site (uncredited)

Bert Stevens

Man in Church (uncredited)

Charles Stewart

Marine Captain (uncredited)

Jack Stoney

Looter (uncredited)

Gus Taillon

Elderly Man (uncredited)

Morton C. Thompson

Reporter (uncredited)

Arthur Tovey

Party Guest (uncredited)

Dale Van Sickel

Looter (uncredited)

Dorothy Vernon

Elderly Woman at Square Dance (uncredited)

Anthony Warde

Military Police Driver (uncredited)

Bob Whitney

Military Officer (uncredited)

Chalky Williams

Worker Listening to Radio (uncredited)

Waldon Williams

Boy (uncredited)

Bud Wolfe

Rescuing Civil Defense Worker (uncredited)

Fred Zendar

Marine Lieutenant (uncredited)

Edith Head

Costume Design

Robert S. Richardson

Technical Advisor

Gae Griffith

Producer's Assistant

Chesley Bonestell

Technical Advisor

Monroe W. Burbank

Color Grading

George Parrish

Orchestrator

Diana Gemora

Costumer

Charles Gemora

Costumer

Murray Young

Key Grip

Soldier Graham

Gaffer

Fred Zendar

Stunts

Bud Wolfe

Stunts

Chalky Williams

Stunts

Dale Van Sickel

Stunts

Jack Stoney

Stunts

Bobby Somers

Stunts

David Sharpe

Stunts

Charles Morton

Stunts

Bob Morgan

Stunts

George Magrill

Stunts

Tex Holden

Stunts

Herman Hack

Stunts

Joe Gray

Stunts

Fred Graham

Stunts

Slim Gaut

Stunts

Jimmie Dundee

Stunts

Mushy Callahan

Stunts

George Bruggeman

Stunts

Chet Brandenburg

Stunts

Cliff Shirpser

Visual Effects Camera

Walter Hoffman

Visual Effects

Marcel Delgado

Modeling

Jack Caldwell

Visual Effects

Irmin Roberts

Visual Effects

Paul K. Lerpae

Visual Effects

W. Wallace Kelley

Visual Effects

Gordon Jennings

Visual Effects

Jan Domela

Visual Effects

Ivyl Burks

Visual Effects

Barney Wolff

Special Effects

Aubrey Law

Visual Effects

A. Edward Sutherland

Special Effects

Ken Strickfaden

Special Effects

Bob Springfield

Special Effects

Chester Pate

Special Effects

Loren L. Ryder

Sound Director

Walter Oberst

Sound Effects

Lovell Norman

Sound Editor

Tommy Middleton

Sound Effects

Dan Johnson

Sound Effects

Howard Beals

Sound Effects

William M. Andrews

Sound Editor

Harry Lindgren

Sound Recordist

Gene Garvin

Sound Recordist

Lee Vasque

Props

Milt Olson

Props

Gene Lauritzen

Construction Coordinator

Charles Davies

Props

Gordon Cole

Property Master

Ivyl Burks

Props

Romaine Birkmeyer

Props

Chesley Bonestell

Painter

Michael D. Moore

Assistant Director

Frank Caffey

Production Manager

Wally Westmore

Makeup Supervisor

Emile Kuri

Set Decoration

Albert Nozaki

Set Decoration

Hal Pereira

Art Direction

Albert Nozaki

Art Direction

Everett Douglas

Editor

George Barnes

Director of Photography

Leith Stevens

Original Music Composer

Cecil B. DeMille

Executive Producer

George Pal

Producer

Frank Freeman Jr.

Associate Producer

Barré Lyndon

Screenplay

H. G. Wells

Novel

Byron Haskin

Director