Kaecilius

One of the most persistent rumors about Doctor Strange is that its main villain won’t be such a famous one, being used just to introduce the audiences in the weird world of magic. Thus, the villain rumored to be played by Mads Mikkelsen is Kaecilius, who was in the comics a pupil of Mordo (hence explaining the turned back of Chiwetel Ejiofor’s character).
After turning evil, Kaecilius manages to open a portal toward a different dimension – one inhabited by malevolent beings. Thus, Kaecilius is the one acting as a puppet in the first Doctor Strange movie, with the big baddie waiting to be revealed further down the line.
From here on, if this rumor proves to be true, we can suspect that Mordo will also become interested in his former pupil’s findings and, along the way, become corrupted himself.
So what kind of malevolent being could that be?
