Doc is the doctor of the astronauts in Life on Mars. He helps the other astronauts if they are hurt or injured. He also appears in the video gameLEGO Racers 2 next to the crashed shuttle in which the player came to Mars. He hints the player to the location of one bonus game vortex. He also hosts the bonus game on Mars. He has the same face as the Mailman and the Director.
In the January-February 2001 issue of LEGO Mania Magazine, he was described as such: "Doc is a super space scientist. He designed the Solar Explorer that is going to Mars."