Edward Richtofen is a German scientist and a doctor who created a whole zombie apocalypse, and now he has to rely on his unconventional allies, who were also his test subjects, to fight of hordes of the undead.
He's way too sexual sometimes, and he's just straight up insane, so I'd recommend you stay at least 12 feet away. He was voiced by Nolan North and is a playable character from Call of Duty: Black Ops 1 to Call of Duty: Black Ops 4.
He can also be seen in Call of Duty mobile as different versions of himself, the most popular being the turned skin, most often being paired with Tank Dempsey, whom he has a love-hate relationship with.
Richtofen: "Mein name is Edward Richtofen, und I vork for zhe group 935 testing facility!"
Dempsey: "Do you guys think we should really be trusting this piece of shit Nazi?"
Takeo: "If our survival depends on it, then sadly, yes."
Nikolai: "Fuck all of you and give me my vodka."