Sigourney Weaver
Ripley
Winona Ryder
Call
Dominique Pinon
Vriess
Ron Perlman
Johner
Gary Dourdan
Christie
Michael Wincott
Elgyn
Kim Flowers
Hillard
Dan Hedaya
General Perez
J.E. Freeman
Dr. Wren
Brad Dourif
Gediman
Raymond Cruz
Distephano
Leland Orser
Purvis
Carolyn Campbell
Anesthesiologist
Marlene Bush
Scientist
David St. James
Surgeon
Rodney Mitchell
Soldier with Glove
Robert Faltisco
Soldier Shot Through Helmet
David Rowe
Frozen Soldier
Garrett House
Soldier
Rod Damer
Soldier
Mark Mansfield
Soldier
Daniel Raymont
Soldier
Cris D'Annunzio
Soldier
Steven Gilborn
Father (voice)
Robert Bastens
Sleeper
Rico Bueno
Sleeper
Alex Lorre
Sleeper
Ronald Ramessar
Sleeper
Nicole Fellows
Young Ripley
Tom Woodruff Jr.
Lead Alien
Joan La Barbara
Newborn Vocal (voice)
Archie Hahn
Newborn Vocal (voice)
Eddie Yansick
Soldier Who Stuns Ripley (uncredited)
Nito Larioza
Sleeper (uncredited)
David Prior
Alien (uncredited)
Nicholas Talone
Soldier in Cocoon (uncredited)
Brad Martin
Soldier Shot by Johner (uncredited)
Alec Gillis
Hero Alien Warrior (uncredited)