Doctor Strange: 31 Easter Eggs & References You Must See
8. Drumm
Towards the climax of the movie when Kaecilius is eventually on his journey to destroy the Sanctums, he first attacks New York where he encounters the Master Daniel Drumm.
He is named only as Drumm (the comic prequel confirmed his name), but the name should be familiar to Marvel fans, having first appeared in Strange Tales in 1973. He was the original Brother Voodoo before his twin brother Jericho took over while his ghost stayed on as a spiritual guide. They have both frequently appeared in comic titles like Ghost Rider, Doctor Strange and Hulk.
In 2009 Jericho Drumm actually succeeded Strange as Sorcerer Supreme and changed his name to Doctor Voodoo.