Krang is a fictional character from the Teenage Mutant Ninja Turtles franchise. He is an alien warlord from the Dimension X who often seeks to conquer Earth. Krang is typically depicted as a pink, brain-like creature that resides in a robotic body, which he controls to carry out his plans. In the series, Krang frequently collaborates with Shredder, the main antagonist, to defeat the Ninja Turtles. His character is known for his distinctive voice and humorous personality, making him a memorable villain in the franchise. Krang's technology and schemes often create challenges for the turtles and their allies.