Krang

Krang is a fictional supervillain who appears in the Teenage Mutant Ninja Turtles TV shows and most frequently in the 1987 STH cartoon and its associated media, such as the Teenage Mutant Ninja Turtles Adventures comic book and most of the classic TMNT video games.

Krang's first comics appearance was in Teenage Mutant Ninja Turtles Adventures vol. 1, #1, published by Archie Comics in August 1988. In the TV series, Krang was voiced by Pat Fraley. He is still one of the main antagonists to the Ninja Turtles, appearing as General Krang in the 2012 IDW comic publication and as the leader of the Kraangs in the 2012 3D CGI Nickelodeon cartoon show.