The Unknown Terror

A woman leads an expedition into a remote jungle to find her long-lost brother, but instead finds a mad scientist who has created a fungus monster that feeds on the local inhabitants.

• 
  Charles Marquis Warren
• 
  Nathan Barragar

• 
  John Howard
  Dan Matthews
• 
  Mala Powers
  Gina Matthews
• 
  Paul Richards
  Peter Morgan
• 
  May Wynn
  Concha Ramsey
• 
  Gerald Milton
  Dr. Ramsey
• 
  Duane Grey
  Lino
• 
  Richard Gilden
  Raoul Koom
• 
  Martín Garralaga
  Lead Villager
• 
  Patrick O'Moore
  Dr. Willoughby
• 
  William Hamel
  Mr. Trainor
• 
  Charles Grey
  Jim Wheatley / ?The Monster Man
• 
  Charles Postal
  Higgs (butler)
• 
  Sir Lancelot
  Sir Lancelot
• 
  Charles Cirillo
  Native (uncredited)
• 
  Jim Whitecloud
  Native (uncredited)
• 
  Foster Hood
  Native (uncredited)