Casts
Bela Lugosi
as Dr. Alex Zorka
Dorothy Arnold
as Jean Drew
Robert Kent
as Capt. Bob West
Edwin Stanley
as Dr. Fred Mallory
Regis Toomey
as Lt. Jim Daley
Edward Van Sloan
as Jarvis
Dora Clement
as Ann Zorka
Anthony Averill
as Rankin
Frank Mayo
as West's Boss
Jim Farley
as Harbormaster
