Medvirkende og filmhold
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Sigourney WeaverLt. Ellen Ripley - Michael BiehnCorporal Dwayne Hicks
- Caroline Marie «Carrie» HennRebecca 'Newt' Jorden
- Lance HenriksenScience Officer L. Bishop
- Paul ReiserCarter J. Burke
- Bill PaxtonPrivate W. Hudson
- William HopeLieutenant S. Gorman
- Jenette GoldsteinPrivate Vasquez
- Al MatthewsSergeant A. Apone
- Ricco RossPrivate R. Frost
- Mark RolstonPrivate Drake
- Colette HillerCorporal C. Ferro
- Daniel KashPrivate D. Spunkmeyer
- Cynthia Dale ScottCorporal C. Dietrich
- Tip TippingPrivate T. Crowe
- Trevor SteedmanPrivate T. Wierzbowski
- Paul MaxwellVan Leuwen
- Valerie ColganECA Rep
- Alan PolonskyInsurance Man
- Alibe ParsonsMed Tech
- Blain FairmanDoctor
- James CameronInstruktør
- Gordon CarrollProducer
- David GilerProducer
- Gale Anne HurdProducer
- Walter HillProducer
- Gordon CarrollExecutive producer
- David GilerExecutive producer
- Walter HillExecutive producer
- David GilerManuskriptforfatter
- Walter HillManuskriptforfatter
- Dan O'BannonManuskriptforfatter
- James CameronManuskriptforfatter