Doc (also known as G.I. Joe Doc) is the code name of two fictional characters from the G.I. Joe: A Real American Hero toyline, comic book and animated series by Sunbow/Marvel.
The first is Carl W. Greer, who is the G.I. Joe Team's original medic and debuted in 1983.[1] The second fictional character to use the code name was Carla P. Greer, the niece of the original Doc who has the same rank and skills.[2]
