Sigourney Weaver
Ripley 8
Winona Ryder
Annalee Call
Dominique Pinon
Dom Vriess
Ron Perlman
Ron Johner
Gary Dourdan
Gary Christie
Michael Wincott
Frank Elgyn
Kim Flowers
Sabra Hillard
Dan Hedaya
Gen. Martin Allahandro Carlos Perez
J.E. Freeman
Dr. Mason Wren
Brad Dourif
Dr. Jonathan Gediman
Raymond Cruz
Pvt. Vincent Distephano
Leland Orser
Larry 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 #1 (voice)
Archie Hahn
Newborn Vocal #2 (voice)
Eddie Yansick
Soldier Who Stuns Ripley
Nito Larioza
Sleeper (uncredited)
David Prior
Alien (uncredited)
Nicholas Talone
Soldier in Cocoon (uncredited)
Brad Martin
Soldier Shot by Johner (uncredited)
Wanda De Jesus
(uncredited)
Alec Gillis
Hero Alien Warrior (uncredited)