Mulder and Martinez
Ivan Martinez (played by Jamie Marsh) was a computer programmer and mastermind of FPS. He worked with Phoebe as well as The Lone Gunmen on the project until the death of Retro while playing against Maitreya. After Mulder and Scully investigated the game and Phoebe seemingly destroyed it, Martinez was despondent until the computer showed a flicker of life. (TXF: "First Person Shooter")