约翰·卡拉丁

John Carradine

饰：Cosmic Man

布鲁斯·班尼特

Bruce Bennett

饰：Dr. Karl Sorenson

Angela Greene

饰：Kathy Grant

保罗兰顿

Paul Langton

饰：Col. Matthews

Scotty Morrow

饰：Ken Grant

Lyn Osborn

Lyn Osborn

饰：Sgt. Gray

Walter Maslow

Walter Maslow

饰：Dr. 'Rich' Richie

Herbert Lytton

饰：Gen. Knowland

Ken Clayton

Ken Clayton

饰：Master Sergeant

Alan Wells

饰：Sergeant

Harry Fleer

饰：Bill, the Park Ranger

约翰·厄曼

John Erman

饰：Radar Operator

德怀特·布鲁克斯

Dwight Brooks

饰：Major

Hal Torey

饰：Dr. Steinholtz