2) Mordo
In the comics, Baron Mordo is Strange’s arch-enemy – a previous student of The Ancient One who reacted with jealousy when Strange was picked as teacher’s pet instead of him. As you do, he proceeded to use his powers for evil. He’s a vibrant character on the page, but for the screen they needed to add a little texture to the character to make him work. By giving his usual role to Kaecilius and recasting him as an ally of Stephen’s, Doctor Strange allows Mordo to become a hugely compelling character.
With Chiwetel Ejiofor in the role, Mordo begins as a likeable, if slightly aloof, friend of Strange and loyal acolyte of the Ancient One. He’s very strict in his beliefs but he’s not afraid to make a joke or two (such as one of the funniest moments of the film, when he gives Strange the wi-fi password – “we’re not savages”). The Ancient One believes that combining Mordo’s rigidity with Strange’s out-of-the-box thinking will make them both stronger. Unfortunately, throughout the movie Mordo’s faith is tested and it drives them apart.
The post-credits scene, which sees him remove someone’s magic as the first step in his newfound quest to rid the world of sorcerers, suggests he is starting his descent into supervillainy. Something that should be great to see in Doctor Strange 2.