The Unknown Terror poster
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The Unknown Terror

5.219571h 16mMovieHorror

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.

DirectorCharles Marquis Warren
WriterKenneth Higgins
ProducerRobert Stabler

Where to watch

Not available in United States
Streaming in 1 other country

The Unknown Terror isn't on any streaming service in United States right now, but it's available in France. Streaming rights are licensed per country.

Cast · Directed by Charles Marquis Warren

JHJohn Howard
John Howard
Dan Matthews
MPMala Powers
Mala Powers
Gina Matthews
PRPaul Richards
Paul Richards
Peter Morgan
MWMay Wynn
May Wynn
Concha Ramsey
GMGerald Milton
Gerald Milton
Dr. Ramsey
DGDuane Grey
Duane Grey
Lino
RGRichard Gilden
Richard Gilden
Raoul Koom
MGMartín Garralaga
Martín Garralaga
Lead Villager
POPatrick O'Moore
Patrick O'Moore
Dr. Willoughby
WH
William Hamel
Mr. Trainor
CG
Charles Grey
Jim Wheatley / ?The Monster Man
CP
Charles Postal
Higgs (butler)

More from John Howard · Lead actor

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Rawhide
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More from Mala Powers · Co-star actress

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1966 · 7.6
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More from Charles Marquis Warren · Director

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More like this

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The Unknown Terror — streaming FAQ

Which OTT platform streams The Unknown Terror?

The Unknown Terror isn't on any streaming service in United States yet, but it's available in France. Streaming rights differ by country — switch your country in the header to see where.

Is The Unknown Terror on Netflix?

No, The Unknown Terror is not on Netflix in United States as of October 2026.

Is The Unknown Terror on Amazon Prime Video?

No, The Unknown Terror isn't on Amazon Prime Video in United States right now.

Where can I watch The Unknown Terror for free?

The Unknown Terror isn't streaming in United States yet, so there's no way to watch it free at the moment.