Casts

• 

  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)