What's the name of the mad scientist–supervillain from the American animated TV series "Kim Possible"?

"Kim Possible" is an American animated action comedy-adventure television series created by Bob Schooley and Mark McCorkle. The series revolves around eponymous high school student Kim Possible, a teenager tasked with fighting crime on a regular basis while coping with everyday issues commonly associated with adolescence.

Dr. Drakken (voiced by John DiMaggio) was born Drew Theodore P. Lipsky. Drakken is Kim's archnemesis and most resilient adversary. He is a mad scientist plotting world domination, although most of his schemes fail at the hands of Kim because he lacks both the patience and intelligence to perfect his ideas, which often suffer as a result of his own mistakes and oversights. His skin has permanently been turned blue as a result of a laboratory accident. Additionally, Drakken is a former college roommate of Kim's father James.