He used to be different.

Victor von Doom (played by Robert Downey Jr.) takes on the mantle of villain for the Avengers in their latest team-up, showcasing his enormous bitterness and powers against Earth’s mightiest heroes. It comes down to this, as his character says in the latest special look: “Hell answers to me…for I am Doom.”

Avengers: Doomsday releases in theaters everywhere on December 18th.

See special look below: