Cast
Steve Karnes
Prof. James Bickford
John
Jean Trevethan
Dr. Sampson, the Paleontologist
Mini Submarine Officer
Tom Trevethan
Scientist
TV Newscaster, not listed in credits
PLA Radio Operator, not listed in creditsFisherman on Quayside, not listed in credits 
Helicopter Pilot, not listed in credits
Doctor, not listed in credits
Photo Lab Aide, not listed in credits
Adm. Summers, not listed in credits
Naval Commander, not listed in credits
French Radio Officer, not listed in credits
Radio Officer, not listed in credits
