ForSeenItForSeenIt
WATCHDISCOVERLISTSAWARDSBALLOT
The Unknown Terror
The Unknown Terror
Play Trailer
Your Rating

The Unknown Terror

1957
Directed byCharles Marquis Warren
1h 16m

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.

CAST
John HowardDan MatthewsMala PowersGina MatthewsPaul RichardsPeter Morgan
ForSeenItForSeenIt
WatchDiscoverCompareWatchlistListsAwardsBallotSearch

© 2026 ForSeenIt. Made for film lovers.

This product uses the TMDB API but is not endorsed or certified by TMDB.

v2.22 · CLOUD · code x84 sha e59514b · rev forseentest-00170-wav

May WynnConcha Ramsey
Gerald MiltonDr. Ramsey
Duane GreyLino
Richard GildenRaoul Koom
Martín GarralagaLead Villager
Patrick O'MooreDr. Willoughby
William HamelMr. Trainor
DETAILS
GENRES
Horror
STATUSReleased
RATING
5.0

Suggested

The Descent: Part 2
6.0
The Descent: Part 22009
Dr. Cyclops
6.2
Dr. Cyclops1940
Gaia
5.9
Gaia2021
Together
7.0
Together2025
Creature from the Black Lagoon
6.8
Creature from the Black Lagoon1954
Annihilation
6.4
Annihilation2018
The Lair of the White Worm
5.9
The Lair of the White Worm1988
The Creeping Flesh
5.9
The Creeping Flesh1973
Die Alone
6.0
Die Alone2024
10 Cloverfield Lane
7.0
10 Cloverfield Lane2016
The Girl with All the Gifts
6.6
The Girl with All the Gifts2016
The Invisible Man
7.5
The Invisible Man1933
Starve Acre
6.0
Starve Acre2024
Never Let Go
6.1
Never Let Go2024
The Empty Man
6.2
The Empty Man2020
Gargoyles
5.8
Gargoyles1972
Alligator
6.1
Alligator1980
Cold Storage
6.7
Cold Storage2026
Messiah of Evil
6.2
Messiah of Evil1975
The Car
6.3
The Car1977
People who rated this

No ratings from ForSeenIt viewers yet.

Where to watch

No streaming options found in US.