Dr. Rotwang is a non-canon character that made his one and only appearance in Mortal Kombat novel.
Doctor Rotwang is a doctor in Munich, Germany, who was responsible for doing the surgery for Kano's replacement eye. He is able to replace an ear or a hand for Kano if needed.
- In Mortal Kombat (2011), a character filling the role of Dr. Rotwang as the man who gave Kano his cybernetics appears in Kabal's Challenge Tower ending, and gifts Kabal with a new, upgraded look. It is possible Dr. Rotwang inspired this character in some way.