Tatsu

Tatsu is the right hand of the Shredder and the secondary villain in the TMNT movie. He acts as the mentor of the Foot ninjas and abuses them physically for falilure. Tatsu even almost killed a young teenager called Shen Sho. Casey Jones defeated Tatsu at the end of the movie.

In the second movie, Tatsu assumes the leadership of the Foot after the Shredder's presumed death. He later learned that his master was alive and served him once more.