What is Mister Sinister's real name?
Mister Sinister's real name is Dr. Nathaniel Essex.
Mister Sinister is a supervillain appearing in American comic books published by Marvel Comics.
Source: Wikipedia: Mister Sinister
Mister Sinister's real name is Dr. Nathaniel Essex.
Mister Sinister is a supervillain appearing in American comic books published by Marvel Comics.
Source: Wikipedia: Mister Sinister