William LeslieWilliam Leslie was 29 in The Night the World Exploded as 'Dr. David Conway'.
Kathryn GrantKathryn Grant was 23 in The Night the World Exploded as 'Laura 'Hutch' Hutchinson'.
Tris CoffinTris Coffin was 47 in The Night the World Exploded as 'Dr. Ellis Morton'.
Raymond GreenleafRaymond Greenleaf was 65 in The Night the World Exploded as 'Gov. Chaney'.
Paul SavagePaul Savage was 31 in The Night the World Exploded as 'Ranger Kirk'.Fred CobyFred Coby was 41 in The Night the World Exploded as 'Ranger Brown'.
Frank J. ScannellFrank J. Scannell was 54 in The Night the World Exploded as 'Sheriff Quinn'.
Charles EvansCharles Evans was 72 in The Night the World Exploded as 'Gen. Bortes'.
Marshall ReedMarshall Reed was 40 in The Night the World Exploded as 'General's Aide'.
Terry FrostTerry Frost was 50 in The Night the World Exploded as 'Chief Rescue Worker'.David ArmstrongDavid Armstrong was 32 in The Night the World Exploded as 'Military Policeman (uncredited)'.
Fred F. SearsFred F. Sears was 43 in The Night the World Exploded as 'Director'Benjamin H. KlineBenjamin H. Kline was 62 in The Night the World Exploded as 'Director of Photography'Jack NattefordJack Natteford was 62 in The Night the World Exploded as 'Writer'Luci WardLuci Ward was 49 in The Night the World Exploded as 'Writer'
Sam KatzmanSam Katzman was 55 in The Night the World Exploded as 'Producer'Paul BorofskyPaul Borofsky was 55 in The Night the World Exploded as 'Editor'Paul PalmentolaPaul Palmentola was 69 in The Night the World Exploded as 'Art Direction'Sidney CliffordSidney Clifford was 55 in The Night the World Exploded as 'Set Decoration'J.S. WestmorelandJ.S. Westmoreland was 58 in The Night the World Exploded as 'Sound'