Four adventurers descend to the bottom of the sea. When their surface tether snaps, they find themselves marooned in a network of underwater caverns.
John Carradine
Prof. Millard Wyman
Robert Clarke
Craig Randall
Phyllis Coates
Dale Marshall
Allen Windsor
Paul Whitmore
Sheila Noonan
Lauri Talbott
George Skaff
Dr. J.R. Matheny
Maurice Bernard
Old Man in the Caverns
Joe Maierhouser
Jim Wyman
Lloyd Nelson
Wilson, Sonar Man
Harry Raven
The Captain
Milt Collion
Hank
Lowell Hopkins
Reporter
Jack Haffner
Jimmy, Reporter
Robert Carroll
Narrator
Jerry Warren
Director, Producer
Jun 16, 1978
May 3, 1941
Nov 24, 1966
Apr 5, 1940
Feb 7, 1997
Mar 17, 1989
Dec 11, 1965
Jun 13, 1967
Dec 23, 1954
Mar 5, 1954
Oct 17, 1999
Dec 19, 1961
Mar 2, 2023
Jul 10, 2008
Mar 17, 1969
Jun 14, 2014
GBM Productions
United States
English
