Clayton Forrester

Gene Barry

Acting

Sylvia Van Buren

Ann Robinson

Acting

Matthew Collins

Lewis Martin

Acting

General Mann

Les Tremayne

Acting

Fiddler Hawkins (uncredited)

Frank Kreig

Acting

Ralph Heffner

Vernon Rich

Acting

Dr. Bilderbeck

Sandro Giglio

Acting

Dr. Duprey (uncredited)

Ann Codee

Acting

Dr. Pryor

Robert Cornthwaite

Acting

Commentary (voice)

Cedric Hardwicke

Acting

General Mann's Aide

Houseley Stevenson Jr.

Editing

Wash Perry

William Phipps

Acting

Salvatore

Jack Kruschen

Acting

Alonzo Hogue (uncredited)

Paul Birch

Acting

Second Radio Reporter / Opening Announcer

Paul Frees

Acting

Cop at Crash Site

Henry Brandon

Acting

Pine Summit Fire Watcher (uncredited)

Peter Adams

Acting

Man (uncredited)

Eric Alden

Acting

Brigadier General (uncredited)

Hugh Allen

Acting

Mother (uncredited)

Ruth Barnell

Acting

Prof. McPherson (uncredited)

Edgar Barrier

Acting

Dr. Carmichael (uncredited)

Russ Bender

Acting

Man in Church (uncredited)

Oscar Blank

Acting

Screaming Woman (uncredited)

Hazel Boyne

Acting

Man in Church (uncredited)

Chet Brandenburg

Acting

Soldier (uncredited)

George Bruggeman

Acting

Woman in Church (uncredited)

Nora Bush

Acting

Boy in Final Church (uncredited)

Tony Butala

Acting

Burning Soldier at Pit (uncredited)

Mushy Callahan

Acting

Looter (uncredited)

Dick Cherney

Acting

Spanish Priest (uncredited)

Edward Colmans

Acting

Man at Pacific Institute of Science and Technology (uncredited)

James Conaty

Acting

Rev. Bethany (uncredited)

Russ Conway

Acting

Marine Sergeant (uncredited)

Martin Coulter

Acting

First Radio Reporter (uncredited)

Vittorio Cramer

Acting

Frenchman (uncredited)

Pierre Cressoy

Acting

Scientist (uncredited)

Oliver Cross

Acting

Woman in Church (uncredited)

Jane Crowley

Acting

Marine Commanding Officer (uncredited)

Jim Davies

Acting

Woman in Church (uncredited)

Helen Dickson

Acting

Buck Monahan (uncredited)

Ralph Dumke

Acting

Civil Defense Official (uncredited)

Jimmie Dundee

Acting

Police Chief (uncredited)

Al Ferguson

Acting

Marine Captain (uncredited)

Dick Fortune

Acting

Dr. James (uncredited)

Alex Frazer

Acting

Bum #2 Listening to Radio (uncredited)

Frank Freeman Jr.

Production

Radio Listener (uncredited)

Slim Gaut

Acting

Martian (uncredited)

Charles Gemora

Acting

Well-Dressed Looter (uncredited)

Ned Glass

Acting

Man in Church (uncredited)

Jack Gordon

Acting

Looter (uncredited)

Fred Graham

Acting

Looter (uncredited)

Joe Gray

Acting

Worker Listening to Radio (uncredited)

Herman Hack

Acting

Young Wife (uncredited)

Nancy Hale

Acting

Girl (uncredited)

Virginia Hall

Acting

KGEB Reporter (uncredited)

Ted Hecht

Acting

Staff Sergeant (uncredited)

Douglas Henderson

Acting

Elderly News Vendor (uncredited)

Gertrude Hoffmann

Acting

Man in Church (uncredited)

Tex Holden

Acting

Party Guest (uncredited)

Jimmie Horan

Acting

Girl (uncredited)

Patricia Iannone

Acting

Reporter (uncredited)

Jerry James

Acting

Worker Listening to Radio (uncredited)

Michael Jeffers

Acting

Man in Church (uncredited)

Dick Johnstone

Acting

Blonde Party Guest (uncredited)

Carolyn Jones

Acting

Colonel (uncredited)

Don Kohler

Acting

Dr. Gratzman (uncredited)

Ivan Lebedeff

Acting

Secretary of Defense (uncredited)

Freeman Lusk

Acting

Chief of Staff (uncredited)

Herbert Lytton

Acting

Official (uncredited)

Wilbur Mack

Acting

Traffic Cop (uncredited)

George Magrill

Acting

Townsman (uncredited)

Mike Mahoney

Acting

Man (uncredited)

John Mansfield

Acting

Military Policeman in Jeep (uncredited)

Joel Marston

Acting

Fire Chief, Crew #3 (uncredited)

Sydney Mason

Acting

Doctor (uncredited)

John Maxwell

Acting

Man in Church (uncredited)

Mathew McCue

Acting

Minister, First Church (uncredited)

David McMahon

Acting

P.E. Official (uncredited)

William Meader

Acting

Reporter (uncredited)

Lee Miller

Acting

Los Angeles Red Cross Official (uncredited)

Ralph Montgomery

Acting

Zippy (uncredited)

Alvy Moore

Acting

Injured Civil Defense Worker (uncredited)

Bob Morgan

Crew

Worker Listening to Radio (uncredited)

Charles Morton

Acting

Military Officer (uncredited)

George Nardelli

Acting

Marine Major (uncredited)

Stanley Orr

Acting

Bum #1 Listening to Radio (uncredited)

George Pal

Directing

Reporter (uncredited)

Walter Richards

Acting

Forest Ranger at Crash Site (uncredited)

Robert Rockwell

Acting

Sheriff Bogany (uncredited)

Walter Sande

Acting

Air Force Bomber Pilot (uncredited)

James Seay

Acting

Man in Church (uncredited)

Allen D. Sewall

Acting

Woman in Church (uncredited)

Lucile Sewall

Acting

Old Woman (uncredited)

Cora Shannon

Acting

Looter (uncredited)

David Sharpe

Acting

Japanese Diplomat (uncredited)

Teru Shimada

Acting

Military Officer (uncredited)

Reginald Lal Singh

Acting

Deputy at Crash Site (uncredited)

Bobby Somers

Crew

Man in Church (uncredited)

Bert Stevens

Acting

Marine Captain (uncredited)

Charles Stewart

Acting

Looter (uncredited)

Jack Stoney

Acting

Elderly Man (uncredited)

Gus Taillon

Acting

Reporter (uncredited)

Morton C. Thompson

Acting

Party Guest (uncredited)

Arthur Tovey

Acting

Looter (uncredited)

Dale Van Sickel

Acting

Elderly Woman at Square Dance (uncredited)

Dorothy Vernon

Acting

Military Police Driver (uncredited)

Anthony Warde

Acting

Military Officer (uncredited)

Bob Whitney

Acting

Worker Listening to Radio (uncredited)

Chalky Williams

Acting

Boy (uncredited)

Waldon Williams

Acting

Rescuing Civil Defense Worker (uncredited)

Bud Wolfe

Acting

Marine Lieutenant (uncredited)

Fred Zendar

Acting