The Unknown Terror
1h 16m·Horror·
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.
| Actor | Role |
|---|---|
 John HowardDan Matthews | Dan Matthews |
 Mala PowersGina Matthews | Gina Matthews |
 Paul RichardsPeter Morgan | Peter Morgan |
 May WynnConcha Ramsey | Concha Ramsey |
 Gerald MiltonDr. Ramsey | Dr. Ramsey |
 Duane GreyLino | Lino |
 Richard GildenRaoul Koom | Raoul Koom |
 Martín GarralagaLead Villager | Lead Villager |
 Patrick O'MooreDr. Willoughby | Dr. Willoughby |
| WWilliam HamelMr. Trainor | Mr. Trainor |
| CCharles GreyJim Wheatley / ?The Monster Man | Jim Wheatley / ?The Monster Man |
| CCharles PostalHiggs (butler) | Higgs (butler) |
 Sir LancelotSir Lancelot | Sir Lancelot |
| CCharles CirilloNative (uncredited) | Native (uncredited) |
| JJim WhitecloudNative (uncredited) | Native (uncredited) |
| FFoster HoodNative (uncredited) | Native (uncredited) |