Sigourney Weaver as Ripley

Winona Ryder as Call

Dominique Pinon as Vriess

Ron Perlman as Johner

Gary Dourdan as Christie

Michael Wincott as Elgyn

Kim Flowers as Hillard

Dan Hedaya as General Perez

J.E. Freeman as Dr. Wren

Brad Dourif as Gediman

Raymond Cruz as Distephano

Leland Orser as Purvis

Carolyn Campbell as Anesthesiologist

Marlene Bush as Scientist

David St. James as Surgeon

Rodney Mitchell as Soldier with Glove

Robert Faltisco as Soldier Shot Through Helmet

David Rowe as Frozen Soldier

Garrett House as Soldier

Rod Damer as Soldier

Mark Mansfield as Soldier

Daniel Raymont as Soldier

Cris D'Annunzio as Soldier

Steven Gilborn as Father (voice)

Robert Bastens as Sleeper

Rico Bueno as Sleeper

Alex Lorre as Sleeper

Ronald Ramessar as Sleeper

Nicole Fellows as Young Ripley

Tom Woodruff Jr. as Lead Alien

Joan La Barbara as Newborn Vocal (voice)

Archie Hahn as Newborn Vocal (voice)

Eddie Yansick as Soldier Who Stuns Ripley (uncredited)

Nito Larioza as Sleeper (uncredited)

David Prior as Alien (uncredited)

Nicholas Talone as Soldier in Cocoon (uncredited)

Brad Martin as Soldier Shot by Johner (uncredited)

Wanda De Jesus as (uncredited)

Alec Gillis as Hero Alien Warrior (uncredited)