In the 2016 film, who portrayed the role of the villainous entity Dormammu, though the role went uncredited?

What is the middle name of Stephen Strange, considered to be a tribute to an iconic actor who was used as an inspiration to create the character by Stan Lee and Steve Ditko? The actor is known for his monologue in Michael Jackson's "Thriller".

When Stephen Strange visits Kamar-Taj to learn the Mystic Arts, the word "Shamballa" is used. What is "Shamballa" in the 2016 movie?

What building in the Dr. Strange universe is located on 177A Bleecker Street, a famous location in Greenwich Village?

In designing this particular thing in the Dr. Strange comics, Steve Ditko drew inspiration from the real world charm The All Seeing Eye of the Buddha, known as The Amulet of Snail Martyrs. What did it inspire?