Gray Mann is a insane human, AKA villain of Team Fortress 2. He wears a grey suit and white hair.
Gray Mann has been sending Robot Replicas of the TF2 Mercenarys at the RED team for years now. He has than met with Ninja Spy and successfully recruited Ninja Spy as a Assassin for him, Though he has never encountered the Recruit of Ninja Spy: Ninja Heavy but we don't know if DrFace will do it or not. It is also theorized that Gray Mann might actually be a GRY Spy