Ripley 8, played by Sigourney Weaver, is a character in the film Alien Resurrection.
Riply 8, also known as Number 8, is a human-Alien hybrid cloned from the DNA of Ellen Ripley and the embryonic Alien Queen recovered from Ripley's blood samples taken from Fury 161. The DNA's integrity has been compromised by the process of infestation and the human and Alien DNA in Number 8 is mixed, creating a humanoid organism with Alien traits such as an empathic link with the rest of the hive, acidic blood, enhanced strength and reflexes and genetic memories.
After United Systems Military researchers extract the Alien Queen from Number 8 on the ship USM Auriga in the year 2381, they keep her alive and confined and give her a rudimentary education. When the Aliens breach their containment, Number 8 joins the crew of the mercenary vessel Betty to attempt an escape; she is captured by the Aliens, who bring her to their nest. Number 8's Alien Queen gives birth to a Newborn, a hybrid which identifies Number 8 as its mother after it kills the Alien Queen. Number 8 escapes from the Auriga on the Betty and again encounters the Newborn, which she jettisons into space. After the Betty lands on Earth, Number 8 looks around with the other survivors and wonders about their uncertain future.