We knew Chiwetel Ejiofor was joining Marvel's Doctor Strange, but until now, we didn't know whom he was playing. Today, Deadline has it on good authority that the acclaimed actor will play long-time enemy to the title character, Baron Mordo. He will star opposite Benedict Cumberbatch, who is signed on as the mystical superhero, and Tilda Swinton, who is taking on the role of the Ancient One.

Baron Mordo was first introduced in the Marvel comic books in 1963, appearing for the first time in Strange Tales. A Transylvanian nobleman, Karl Amadeus Mordo was a student of the Tibetan sorcerer known as the Ancient One, but later plotted to kill his teacher. A plan thwarted by Doctor Strange. The Ancient One, in turned, trained Strange to become a formidable enemy for Mordo, and the villain became one of the Sorcerer Supreme's greatest foes. Mordo has powers similar to Doctor Stephen Vincent Strange, with vast magical abilities derived from his years of studying black magic and the mystic arts.

The movie will change the relationship between Strange and Mordo somewhat, with Chiwetel Ejiofor not playing a complete villain. He is actually going to be an amalgamation of characters culled from the Marvel comic's mythology. This isn't the only change-up the movie is implementing, as you can see that The Ancient One has been gender-swapped, and is no longer an ancient Tibetan male, but instead an ageless woman. The Jon Spaihts script will follow the story of a brilliant and arrogant neurosurgeon who learns after a horrific car accident that his hands don't hold the key to his powers. Instead, he discovers the hidden world of magic and alternate dimensions. Scott Derrickson is directing, with Disney set to launch the movie in November 2016. What do you think of this casting choice?