15 Video Game Scientists That Will Give Players A Hard Time 

Dr. Samuel Hayden – DOOM

Samuel Hayden is no ordinary doctor. Actually, he isn’t even a human, not anymore, as he long ago shrugged off his squishy mortal form to become an imposing robot, in total control of the UAC Lazarus Project on Mars. The one responsible for liberating, or perhaps unleashing the Doom Marine from his hell prison, Dr. Hayden is smart enough to realize that the Doom Marine really isn’t on anyone’s side, let alone the side of the guy who started messing with Hell energy in the first place. Always one step ahead of the player, at the very end of the game when the portal has been closed on Mars, Hayden takes what he wants from the Doom Slayer and leaves him trapped in Hell until he might need to use him again. I’m sure this sequel bait won’t make for a happy reunion.