Cast & Crew
Spencer Gordon Bennet
A young couple journeys to Mystery Island to rescue the girl's father, who is being held prisoner by the evil Captain Mephisto, a pirate from 200 years ago who uses his Transformation Machine to travel forward in time and disguise himself as one of the four owners of Mystery Island.
Dale Van Sickel
Roy Barcroft regarded "Captain Mephisto" in this non-western serial as his favorite role.