Khan (2003 TV series)

Master Khan first appeared in Tmnt Back To The Sewer Episode 1 Tempus Fugit when the Turtles got zapped into the not so distant future by Viral. He was Casey's karate teacher who hypnotized the students in his class to do his dirty work. April was suspicious and ask's the turtles to check it out. The turtles find out what he was doing and fights him and Casey as he was hypnotized too. They found it hard to defeat him because he knows the way they fight from Casey. He is a part of the foot clan.