Action Sci-Fi
Claire Forrest seeks her kidnapped scientist father, hidden somewhere on Mystery Island. He is held and forced to work on diabolical inventions by Captain Mephisto, a costumed villain.
Directed by
Spencer Gordon Bennet, Wallace Grissell, Yakima Canutt
Forbes Murray
Prof. Harry Hargraves
Fred Graham
Tom Steele
Lyons / Bailey
Forrest Taylor
Prof. William Forrest
Roy Barcroft
Capt. Mephisto
Eddie Parker
Ed Cassidy
Paul Melton
Dale Van Sickel
Barker / Ritter / Lewis / Frazier / Sardon
Lane Chandler
Police Insp. Reed
Jack Ingram
Edward Armstrong
Yakima Canutt
Harry Strang
Frederick "Fred" Braley
Linda Stirling
Claire Forrest
Kenne Duncan
Sidney Brand
Russ Vincent
Ruga
Richard Bailey
Lance Reardon
Frank Alten
John Raymond
Duke Green
Spencer Harvey

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