“It was me all along, Denton. I was the one that told Gunther where you and your brother were hiding. I was the one that almost killed you! After all… Who could ever suspect of the sweet, caring, naive little Judas?”
“You… You are not Judas”
“You’re right. I’m the Doktor”

Long story short, Judas (one of my two DX OCs) suffers of something that could be described as "schizophrenia" and "split personality" for a lack of better words (if you played Mankind Divided, it's similar to Daria Myška but much worse) because he's a Majestic 12 agent and costantly experimented on. Most of the time he's actually the sweetest person on the planet.

Also he's the clone of these two guys https://www.furaffinity.net/view/26064435/
(Made with their DNA)

... His facial traits are actually blatantly based on one of my favorite actors.