(DeCandido's novelizations of the Anderson films)
Karl Johanssen was an Umbrella employee assigned to the Nemesis Program.
Prior to the 2002 viral outbreak, Johanssen was a Marine. He joined Umbrella as a technician after his second tor was up. Joining the Nemesis program in 2002, he worked for Dr. Isaacs as part of the project board, owing to the influences of Major Timothy Cain. As part of the program, he was connected to a machine which transmitted orders to the Nemesis, determining who to target after making a judgement of what the Nemesis' camera was showing.