Les Tremayne

General Mann

Mushy Callahan

Burning Soldier at Pit (uncredited)

Jack Kruschen

Salvatore

Teru Shimada

Japanese Diplomat (uncredited)

Douglas Henderson

Staff Sergeant (uncredited)

Paul Frees

Second Radio Reporter / Opening Announcer

Ned Glass

Deck Hand (uncredited)

Carolyn Jones

Blonde party guest (uncredited)

Les Tremayne

General Mann

Mushy Callahan

Burning Soldier at Pit (uncredited)

Jack Kruschen

Salvatore

Teru Shimada

Japanese Diplomat (uncredited)

Douglas Henderson

Staff Sergeant (uncredited)

Paul Frees

Second Radio Reporter / Opening Announcer

Ned Glass

Deck Hand (uncredited)

Carolyn Jones

Blonde party guest (uncredited)

George Pal

Bum #1 Listening to Radio (uncredited)

Henry Brandon

Cop at Crash Site

Anthony Warde

Mover with Pickup Truck

Dale Van Sickel

Looter (uncredited)

Alvy Moore

Zippy (uncredited)

Pierre Cressoy

Man (uncredited)

Gene Barry

Dr. Clayton Forrester

Robert Cornthwaite

Dr. Pryor

Sandro Giglio

Dr. Bilderbeck

Edgar Barrier

Prof. McPherson (uncredited)

Ralph Dumke

Buck Monahan (uncredited)

John Maxwell

Doctor (uncredited)

James Seay

Air Force Bomber Pilot (uncredited)

Cliff Clark

Vic Kersey

Russ Conway

Rev. Bethany (uncredited)

Lewis Martin

Pastor Dr. Matthew Collins

Walter Sande

Sheriff Bogany (uncredited)

David Sharpe

Looter (uncredited)

Paul Birch

Alonzo Hogue (uncredited)

Russ Bender

Dr. Carmichael (uncredited)

Cedric Hardwicke

Commentary (voice)

William Phipps

Wash Perry

Ann Robinson

Sylvia Van Buren

Fred Graham

Looter (uncredited)

Gertrude Hoffmann

Elderly Woman News Vendor (uncredited)

Houseley Stevenson Jr.

Gen. Mann's aide

Stanley Orr

Marine Major (uncredited)

Ralph Montgomery

Los Angeles Red Cross official (uncredited)

Jimmie Dundee

Civil Defense Official (uncredited)

Joe Gray

Looter (uncredited)

Bud Wolfe

Rescuing Civil Defense Worker (uncredited)

Ivan Lebedeff

Dr. Gratzman (uncredited)

Edward Colmans

Spanish Priest (uncredited)

Ann Codee

Dr. Duprey (uncredited)

David McMahon

Minister, First Church (uncredited)

Peter Adams

Pine Summit Fire Watcher (uncredited)

Joel Marston

MP in Jeep (uncredited)

Robert Rockwell

Forest Ranger at Crash Site (uncredited)

Ted Hecht

KGEB Reporter (uncredited)

Lee Miller

Reporter (uncredited)

Herbert Lytton

Chief of Staff (uncredited)

Hazel Boyne

Screaming Woman (uncredited)

John Mansfield

Man (uncredited)

Don Kohler

Colonel (uncredited)

Mike Mahoney

Young Man (uncredited)

Nancy Hale

Young Wife (uncredited)

Frank Kreig

Fiddler Hawkins (uncredited)

Fred Zendar

Marine Lieutenant (uncredited)

Bob Morgan

Injured Civil Defense Worker (uncredited)

Jim Davies

Marine Commanding Officer (uncredited)

Rudy Lee

Boy (scenes deleted)

George Magrill

Traffic Cop (uncredited)

Dorothy Vernon

Elderly Woman (uncredited)

Alex Frazer

Dr. James (uncredited)

Vernon Rich

Col. Ralph Heffner

William Meader

P.E. Official (uncredited)

Helen Dickson

Woman in Church (uncredited)

Freeman Lusk

Secretary of Defense (uncredited)

Eric Alden

Man (uncredited)

Sydney Mason

Fire Chief, Crew #3 (uncredited)

Tony Butala

One of 3 Boys in Final Church Scene (uncredited)

Al Ferguson

Police Chief (uncredited)

Jack Stoney

Looter (uncredited)

Hugh Allen

Brigadier General (uncredited)

Ruth Barnell

Mother (uncredited)

Chet Brandenburg

Man in Church (uncredited)

James Conaty

Man at Pacific Institute of Science and Technology (uncredited)

Martin Coulter

Marine Sergeant (uncredited)

Vittorio Cramer

First Radio Reporter (uncredited)

Dick Fortune

Marine Captain (uncredited)

Frank Freeman Jr.

Bum #2 Listening to Radio (uncredited)

Charles Gemora

Martian (uncredited)

Virginia Hall

Girl (uncredited)

Jimmy Horan

Party Guest (uncredited)

Patricia Iannone

Girl (uncredited)

Jerry James

Reporter (uncredited)

Mathew McCue

Man in Church (uncredited)

Walter Richards

Reporter (uncredited)

Cora Shannon

Old Woman (uncredited)

Bobby Somers

Deputy at Crash Site (uncredited)

Bert Stevens

Man in Church (uncredited)

Charles Stewart

Marine Captain (uncredited)

Gus Taillon

Elderly Man (uncredited)

Morton C. Thompson

Reporter (uncredited)

Arthur Tovey

Party Guest (uncredited)

Edward Wahrman

Cameraman (uncredited)

Waldon Williams

Boy (uncredited)

---

MoreLess Cast

George Barnes

Director of Photography

H. G. Wells

Novel

George Pal

Producer

Leith Stevens

Music

Barré Lyndon

Screenplay

Everett Douglas

Editor

Byron Haskin

Director