约翰·卡拉丁

John Carradine

饰：Prof. Millard Wyman

罗伯特·克拉克

Robert Clarke

饰：Craig Randall

菲莉斯·科特斯

Phyllis Coates

饰：Dale Marshall

Allen Windsor

Allen Windsor

饰：Paul Whitmore

Sheila Noonan

饰：Lauri Talbott

George Skaff

饰：Dr. J.R. Matheny

Maurice Bernard

Maurice Bernard

饰：Old Man in the Caverns

Joe Maierhouser

Joe Maierhouser

饰：Jim Wyman

Lloyd Nelson

饰：Wilson, Sonar Man

Harry Raven

Harry Raven

饰：The Captain

Milt Collion

Milt Collion

饰：Hank

Robert Carroll

饰：Narrator

Lowell Hopkins

Lowell Hopkins

饰：Reporter

Jack Haffner

Jack Haffner

饰：Jimmy, Reporter

Jerry Warren

饰：Plane Passenger Behind Wyman