Regia: David Fincher
Sceneggiatura: Larry Ferguson, David Giler, Walter Hill
Fotografia: Alex Thomson
Musica: Elliot Goldenthal
Effetti speciali: George Gibbs, Larry Weiss
Costumi dell'alieno: Alec Gills
Produzione: 20th Century Fox, Usa 1992

Ripley: Sigourney Weaver
Dillon: Charles Dutton
Clemens: Charles Dance
Golic: Paul McGann
Andrews: Brian Glover
Aaron: Ralph Brown
Morse: Danny Webb
Rains: Christopher John Fields
Junior: Holt McCallany
Bishop II: Lance Henriksen
Murphy: Chris Fairbank
Frank: Carl Chase
Boggs: Leon Herbert
Jude: Vincenzo Nicoli
David: Pete Postlethwaite
Troy: Paul Brennen
William: Clive Mantle
Gregor: Peter Guinness
Arthur: Dhobi Oparei
Kevin: Philip Davis
Eric: Niall Buggy
Uomo della Compagnia: Hi Ching
Newt: Danielle Edmond