Mother (uncredited)
Ruth Barnell
Prof. McPherson (uncredited)
Edgar Barrier
Dr. Carmichael (uncredited)
Russ Bender
Alonzo Hogue (uncredited)
Paul Birch
Screaming Woman (uncredited)
Hazel Boyne
Man in Church (uncredited)
Chet Brandenburg
One of 3 Boys in Final Church Scene (uncredited)
Tony Butala
Burning Soldier at Pit (uncredited)
Mushy Callahan
Dr. Duprey (uncredited)
Ann Codee
Spanish Priest (uncredited)
Edward Colmans
Man at Pacific Institute of Science and Technology (uncredited)
James Conaty
Rev. Bethany (uncredited)
Russ Conway
Marine Sergeant (uncredited)
Martin Coulter
First Radio Reporter (uncredited)
Vittorio Cramer
Man (uncredited)
Pierre Cressoy
Marine Commanding Officer (uncredited)
Jim Davies
Woman in Church (uncredited)
Helen Dickson
Buck Monahan (uncredited)
Ralph Dumke
Minister, First Church (uncredited)
David McMahon
P.E. Official (uncredited)
William Meader
Reporter (uncredited)
Lee Miller
Los Angeles Red Cross official (uncredited)
Ralph Montgomery
Zippy (uncredited)
Alvy Moore
Injured Civil Defense Worker (uncredited)
Bob Morgan
Marine Major (uncredited)
Stanley Orr
Bum #1 Listening to Radio (uncredited)
George Pal
Reporter (uncredited)
Walter Richards
Forest Ranger at Crash Site (uncredited)
Robert Rockwell
Sheriff Bogany (uncredited)
Walter Sande
Air Force Bomber Pilot (uncredited)
James Seay