演职人员
导演
Jerry Warren
Prof. Millard Wyman
John Carradine
Craig Randall
Robert Clarke
Dale Marshall
菲利斯·科茨
Paul Whitmore
Allen Windsor
Lauri Talbott
Sheila Noonan
Dr. J.R. Matheny
George Skaff
Old Man in the Caverns
Maurice Bernard
Jim Wyman
Joe Maierhouser
Wilson, Sonar Man
Lloyd Nelson
The Captain
Harry Raven
Hank
Milt Collion
Reporter
Lowell Hopkins
Jimmy, Reporter
Jack Haffner
Narrator
Robert Carroll