X: The Unknown poster
Where to stream

X: The Unknown

6.119561h 21mMovieHorrorScience FictionMystery

Army radiation experiments awaken a subterranean monster from a fissure that feeds on energy and proceeds to terrorise a remote Scottish village. An American research scientist at a nearby nuclear plant joins with a British investigator to…

DirectorLeslie Norman
WriterJimmy Sangster
ProducersAnthony Hinds·Michael Carreras

Where to watch

Not available in Australia
Streaming in 5 other countries

X: The Unknown isn't on any streaming service in Australia right now, but it's available in Guernsey, Ireland, Spain, United Kingdom and 1 more. Streaming rights are licensed per country.

Cast · Directed by Leslie Norman

DJDean Jagger
Dean Jagger
Dr. Adam Royston
LMLeo McKern
Leo McKern
Inspector McGill
WLWilliam Lucas
William Lucas
Peter Elliott
ECEdward Chapman
Edward Chapman
John Elliott
JHJohn Harvey
John Harvey
Maj. Cartwright
MRMichael Ripper
Michael Ripper
Sgt. Harry Grimsdyke
ANAnthony Newley
Anthony Newley
LCpl. 'Spider' Webb
IMIan MacNaughton
Ian MacNaughton
Pvt. Haggis
PHPeter Hammond
Peter Hammond
Lt. Bannerman
KCKenneth Cope
Kenneth Cope
Pvt. Lansing
MB
Michael Brooke
Willie Harding
FHFrazer Hines
Frazer Hines
Ian Osborn

More from Dean Jagger · Lead actor

Columbo
Columbo
1971 · 8.1
The Fugitive
The Fugitive
1963 · 7.3
The Waltons
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1972 · 7.1
The Alfred Hitchcock Hour
The Alfred Hitchcock Hour
1962 · 7.9
The Twilight Zone
The Twilight Zone
1959 · 8.5
St. Elsewhere
St. Elsewhere
1982 · 5.7
The Philco Television Playhouse
The Philco Television Playhouse
1948 · 6.6
The F.B.I.
The F.B.I.
1965 · 5.6
Dr. Kildare
Dr. Kildare
1961 · 5.7
Studio One
Studio One
1948 · 5.4
See all fromDean Jagger

More from Leo McKern · Co-star actor

Great Performances
Great Performances
1971 · 6.1
Play for Today
Play for Today
1970 · 6.6
BBC Play of the Month
BBC Play of the Month
1965 · 5.2
The Wednesday Play
The Wednesday Play
1964 · 5.2
ITV Playhouse
ITV Playhouse
1967 · 7.0
Screen Two
Screen Two
1985 · 7.1
Thirty-Minute Theatre
Thirty-Minute Theatre
1965 · 4.2
The Omen
The Omen
1976 · 7.4
The Adventures of Robin Hood
The Adventures of Robin Hood
1955 · 6.4
ITV Saturday Night Theatre
ITV Saturday Night Theatre
1969 · 7.0
See all fromLeo McKern

More from Leslie Norman · Director

The Avengers
The Avengers
1961 · 7.8
The Saint
The Saint
1962 · 7.4
The Champions
The Champions
1968 · 6.5
The Persuaders!
The Persuaders!
1971 · 7.7
Return of the Saint
Return of the Saint
1978 · 7.0
Gideon's Way
Gideon's Way
1965 · 7.0
Department S
Department S
1969 · 5.5
Shirley's World
Shirley's World
1972 · 6.0
The Baron
The Baron
1966 · 5.9
The Last Appointment!
The Last Appointment!
1977 · 10.0
See all fromLeslie Norman

More like this

The Giant Behemoth
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Underwater
Underwater
2020 · 6.3
Them!
Them!
1954 · 6.8
The Blob
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1958 · 6.2
The Creeping Flesh
The Creeping Flesh
1973 · 5.9
The Blob
The Blob
1988 · 6.9
Island of Terror
Island of Terror
1966 · 5.9
The Return of Doctor X
The Return of Doctor X
1939 · 6.0
The Car
The Car
1977 · 6.4
The Asphyx
The Asphyx
1972 · 6.0
The Horror of Frankenstein
The Horror of Frankenstein
1970 · 5.9
The Meg
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2018 · 6.3

X: The Unknown — streaming FAQ

Which OTT platform streams X: The Unknown?

X: The Unknown isn't on any streaming service in Australia yet, but it's available in Spain, United Kingdom and Guernsey and other countries. Streaming rights differ by country — switch your country in the header to see where.

Is X: The Unknown on Netflix?

No, X: The Unknown is not on Netflix in Australia as of October 2026.

Is X: The Unknown on Amazon Prime Video?

No, X: The Unknown isn't on Amazon Prime Video in Australia right now.

Where can I watch X: The Unknown for free?

X: The Unknown isn't streaming in Australia yet, so there's no way to watch it free at the moment.