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What's After the Movie?
Mystery horror film

X: The Unknown (1956): Cast

X: The Unknown (1956) movie poster

X: The Unknown is a 1956 mystery horror film directed by Leslie Norman, starring Dean Jagger as Dr. Adam Royston, Leo McKern and Anthony Newley. It runs 1 hour 21 minutes.

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X: The Unknown (1956) movie poster
Released
Runtime
1h 21m (81 min)
Director
Leslie Norman
Genres
Mystery , Horror , Sci-Fi
Original language
English
After the credits
No No extra scene
The story

What Is X: The Unknown About?

The premise of X: The Unknown without spoilers.

An army radiation experiment awakens a monster that rises from 2,000 miles below Earth, feeding on energy and melting everything in its path. The creature terrorizes a remote Scottish village. A nuclear‑plant researcher and a British investigator join to explain the radioactive burns and a series of radiation incidents spreading from the fissure.

X: The Unknown Themes & Keywords

· 35 tags
  • liquor still
  • kiss
  • residue
  • fissure
  • hand cranked
  • human skull
  • concrete
  • lead box
  • helicopter
  • church
  • glow
  • psychotronic film
+23 more
  • low budget sci fi movie
  • child in jeopardy
  • screaming man
  • flamethrower
  • creature
  • grieving parent
  • reporter
  • radio wave
  • security guard
  • explosion
  • investigation
  • radiation burn
  • death of a child
  • military training
  • military officer
  • hermit
  • government agent
  • geiger counter
  • abyss
  • melting face
  • monster
  • radioactive material
  • scientist
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Cast & crew

X: The Unknown Cast & Characters

Dean Jagger leads the cast as Dr. Adam Royston, with Leo McKern as Inspector McGill and Anthony Newley as LCpl. 'Spider' Webb. Directed by Leslie Norman; 29 actors are credited in all.

Also Starring in X: The Unknown

· 25 more
Show all 29 cast members
From the director

More from Leslie Norman

More films directed by Leslie Norman: The Masqueraders, Spare the Rod, The Long and the Short and the Tall and Dunkirk.

Full filmography
Videos

X: The Unknown Trailers & Videos

2 videos: 1 trailer and 1 featurette.

X The Unknown / Original Theatrical Trailer (1956)
  • Featurette Joe Dante on X - THE UNKNOWN
Cars

Cars in X: The Unknown

11 cars on screen, including the 1951 Humber Super Snipe Mk III and the Willys MB 'Jeep'.

All 11 cars
  • 1951 Humber Super Snipe Mk III in X: The Unknown 1951 Humber Super Snipe Mk III Important role
  • Willys MB 'Jeep' in X: The Unknown Willys MB 'Jeep' Important role
  • 1944 AEC Matador in X: The Unknown 1944 AEC Matador Minor role
  • Clark Utilitruc in X: The Unknown Clark Utilitruc Minor role
Details

X: The Unknown Also Known As

11 alternative titles, including “XX... Unbekannt” and “Lo desconocido”.

Also known as
  • XX... Unbekannt
  • Lo desconocido
  • X
  • O Monstro Radioativo
  • X contro il centro atomico
  • XX unbekannt
  • X, o Inimigo Desconhecido
  • X...L'Inconnu
  • O Estranho de Um Mundo Perdido
  • Икс: Неизвестное
  • X--未知的元素

Seen X: The Unknown?

FAQ

X: The Unknown FAQ: Cast, Runtime & Release Date

Runtime, release date, director, cast and post-credit scenes of X: The Unknown, each answered in a sentence.

How long is X: The Unknown?

X: The Unknown runs 1 hour 21 minutes (81 minutes).

When was X: The Unknown released?

X: The Unknown was released on September 21, 1956.

Who directed X: The Unknown?

X: The Unknown was directed by Leslie Norman.

More films by Leslie Norman

Who is in the cast of X: The Unknown?

X: The Unknown stars Dean Jagger as Dr. Adam Royston, Leo McKern as Inspector McGill and Anthony Newley as LCpl. 'Spider' Webb, among 29 credited actors.

Does X: The Unknown have a post-credit scene?

No. X: The Unknown has no extra scene during or after the credits.

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