In Star Trek: Voyager, Seven of Nine (Jeri Ryan) serves on the USS Voyager. Born Annika Hansen, she was assimilated by the Borg at age 6, but the Doctor is able to remove most of her cybernetic implants and restore her humanity.
In Blade Runner, Rachael (Sean Young) is the latest replicant created by Dr. Eldon Tyrell. What sets Rachael apart from previous models is that she’s been implanted with the memories of Tyrell’s niece. She doesn’t realize she’s an android, although she might be beginning to suspect.
In Prometheus, David 8 (Michael Fassbender) is a next generation robot from Weyland Industries capable of simulating human emotion. On the upside, he enjoys the film Lawrence of the Arabia; on the downside, he develops an ego, insecurities, jealousy and envy.