劳埃德·布里吉斯

Lloyd Bridges

饰：Charlie Englehardt

杰里米·斯莱特

Jeremy Slate

饰：Astronaut Captain Rick Lawrence

吉姆·麦克马伦

Jim McMullan

饰：Astronaut Ben Pelham

摩根·保罗

Morgan Paull

饰：Astronaut Dave Anderson

Michael Link

饰：Eli 'E.J.' Mackernutt

约翰·卡拉丁

John Carradine

饰：Jacob Avril

Jack Callahan

饰：Dr. Jack Smathers

沃尔特·布鲁克

Walter Brooke

饰：Whitehead

Keene Curtis

饰：Tom Estes

Edward Faulkner

饰：Eli Mackernutt Sr.

乔恩·锡达

Jon Cedar

饰：Hans Hartmann

Barbara Faulkner

Barbara Faulkner

饰：Mrs. Mary Mackernutt

Stephen Rogers

Stephen Rogers

饰：Joey Williams

Charles Conrad

饰：News Commentator