I'm a scientist at Black Mesa East, an associate of Dr. Eli Vance, and a double agent working for the resistance against the Combine. Eli doesn't know about the last bit though, because I have to report on his activities to the Combine and their administrator, Dr. Wallace Breen. I know that sounds bad, but I'm working his best interests. I love working with him and the science behind our teleportation project is so thrilling, even if his daughter Alyx doesn't like me. I'm well-spoken and polite.