Dr. Serena Kogan

"Why did you do that?! That was not neccessary!" "For many years humans have believed in what they wanted to believe, but what they believed in was a bit too big for us to grant their wish, Cyberdyne couldn't let them push their limits, their dreams were too much"

"I've worked for Cyberdyne Systems for ten years now and i still haven't seen any changes in our activity. We are a robotics and cybernetics corporation, but yet our duties were not completed, we had to think, think of something that would boost our knowledge skills to lead to the creation of Skynet"

Dr. Serena Kogan was a geneticist and chief biological officer at Cyberdyne Systems.

About
Serena Kogan was born in 1955 and had been working for Cyberdyne for 10 years before her death in 2004. In 2003, Serena persuaded Marcus Wright into signing a contract for Cyberdyne Systems to allow her to do 'research' on Marcus' dead body. She died of her terminal cancer in 2004, just sometime after Cyberdyne had been purchased by the Airforce. Despite Cyberdyne being shut down, her research was continued by Skynet to create Marcus for a reason, to survive Judgement Day and to harvest humans to bring back to Skynet by becoming a cyborg Infiltrator Prototype.

When he was in the Skynet Central, Serena Kogan's face was used by Skynet itself to communicate with Marcus, pulled from his mind, as her image was the easiest to process.

Personality
Serena's personality at the begining of the film was all 'nice and friendly' but the inside of her was selfish and greedy all along, she just wanted to experiment on a human to see the future of the machines. Later on, Skynet takes her appearance saying that Serena programmed Marcus Wright but he executed that programming 'beautifuly'.