Dormammu (Marvel Cinematic Universe)

"You've come to die! Your world is now my world!"

- Dormammu welcomes Strange in the Dark Dimension Dormammu is one of the main villains in the 2016 Marvel movie Dr. Strange. It is a gigantic, godlike force of pure evil who exists in the Dark Dimension and seeks to spread his malign influence to all other worlds. He is the MCU's adaptation of the comic villain with the same name.

Dormammu is portrayed by Benedict Cumberbatch, who also portrays Doctor Strange in the movie, through motion capture. It's voice was provided by an unknown actor.

History
Dormammu is a resident of the Dark Dimension and wishes to merge all existing universes with it. Despite his sinister plans, a group of Zealots mistakenly believes that Dormammu should be allowed to merge Earth with the Dark Dimension, believing that this would eradicate time and death and would thus grant eternal life. The Zealots, led by Kaecilius, contact Dormammu who grants them strength through the powers of the Dark Dimension. He tasks Kaecilius with destroying the sanctums of magic in Hongkong, London and New York to allow Dormammu to spread the Dark Dimension on earth. Kaecilius succeeds, creating a portal in Hongkong through which Dormammu spreads the Dark Dimension on earth.

However, time is reversed by Steven Strange by the use of an infinity stone. Strange thus drives the Dark Dimension back through the portal and even flies through it himself, having devised a plan to stop Dormammu. Once arriving in the Dark Dimension, Strange traps Dormammu and himself in a time loop. Dormammu, who has no understanding of time, at first does not understand and starts killing Strange. However, after realising that he and Strange, who is willing to make that sacrifice, are forced to live through the same moment over and over again, Dormammu grows more and more irritated and agrees to negotiate with Strange. Strange promises to release Dormammu but in turn, Dormammu has to leave earth and take his followers with him. Additionally, Dormammu can never return to earth. Begrudgingly, Dormammu accepts and, true to his word, sucks the Zealots into the Dark Dimension before closing the portal.

Trivia

 * Rather than being wreathed in flame like in the comics, Dormammu appears to be a being of pure shadow and darkness but with bright purple eyes.