Michelle Neuhaus - ミシェル・ネイガウス
(ミカエラ・ネイガウス)
About
The wife of Igor Neuhaus, she was killed on the Blue Night. ~!But was brought back to life by someone. She was also the masked man who hunt Rin and kept the True Cross Academy students hostage. She only appears in the anime.!~ (Source: Blue Exorcist Wikia)
