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Cast

John Howard

John Howard

Dan Matthews

Mala Powers

Mala Powers

Gina Matthews

Paul Richards

Paul Richards

Peter Morgan

May Wynn

May Wynn

Concha Ramsey

Gerald Milton

Gerald Milton

Dr. Ramsey

Duane Grey

Duane Grey

Lino

Richard Gilden

Richard Gilden

Raoul Koom

Martín Garralaga

Martín Garralaga

Lead Villager

Patrick O'Moore

Patrick O'Moore

Dr. Willoughby

William Hamel

William Hamel

Mr. Trainor

Charles Grey

Charles Grey

Jim Wheatley / ?The Monster Man

Charles Postal

Charles Postal

Higgs (butler)

Sir Lancelot

Sir Lancelot

Sir Lancelot

Charles Cirillo

Charles Cirillo

Native (uncredited)

Jim Whitecloud

Jim Whitecloud

Native (uncredited)

Foster Hood

Foster Hood

Native (uncredited)

Crew

Charles Marquis Warren

Charles Marquis Warren

Director

Joseph F. Biroc

Joseph F. Biroc

Director of Photography

Kenneth Higgins

Kenneth Higgins

Writer

Robert Stabler

Robert Stabler

Producer

Raoul Kraushaar

Raoul Kraushaar

Original Music Composer

G. W. Bernsten

G. W. Bernsten

Set Decoration

Michael Luciano

Michael Luciano

Editor

Fred W. Berger

Fred W. Berger

Supervising Film Editor

Pat Whiffing

Pat Whiffing

Hairstylist

Nathan Barragar

Nathan Barragar

Production Manager

Vou Lee Giokaris

Vou Lee Giokaris

Wardrobe Supervisor

Louis DeWitt

Louis DeWitt

Special Effects

Hugh McDonald

Hugh McDonald

Sound

Robert O'Dell

Robert O'Dell

Wardrobe Supervisor

Glen Alden

Glen Alden

Makeup Artist

Nathan Barragar

Nathan Barragar

Assistant Director

Jack Rabin

Jack Rabin

Special Effects

James W. Sullivan

James W. Sullivan

Art Direction

Mike Gordon

Mike Gordon

Property Master

Movie poster

The Unknown Terror

19575.1 / 1076 min
Horror

Overview

They dared enter the Cave of Death to explore the secrets of hell!

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.