Alien Terror

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In the late 1800's, Boris Karloff has discovered a way to use nuclear power. He creates a beam weapon and blows up a big rock. Outer space aliens are scared and one alien who looks a lot like James Cameron with a big fake nose only this one isn't fake lands and brings other aliens who take over the bodies of Karloff and his assistant. The assistant is a Jack the Ripper style killer who has done a few nasty murders which have riled the townsfolk. The body-snatched bodies become radioactive and start killing flowers and other stuff (but don't die themselves) and some stuff happens and in the end Karloff destroys the beam weapon equipment (and his lab and house), then the aliens leave and warn us that if anyone ever does it again there will be trouble.

  1. Juan Ibáñez


  2. José Luis González de León


  3. Jack Hill


Top Billed Cast

  1. Boris Karloff

    Boris Karloff

    Prof. John Mayer

  2. Enrique Guzmán

    Enrique Guzmán

    Dr. Paul Rosten

  3. Christa Linder

    Christa Linder


  4. Maura Monti

    Dr. Isabel Reed

  5. Yerye Beirute

    Yerye Beirute


Full Cast & Crew

Alien Terror
Alien Terror


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Original Title La Invasión Siniestra

Status Released

Release Information

  • January 1, 1971


Original Language English

Runtime 1h 30m

Budget -

Revenue -

Homepage -



Content Score


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