Lao Chu is a villain from the cartoon series "Mighty Max".
In Chinese mythology, Lao Chu is the Emperor of Rats, who long ago was imprisoned in a large chunk of jade - now referred to as the "Heart of Lao Chu". A Chinese historian, Ki Wan, accidentally freed Lao Chu by touching the heart and giving Chu power over his physical form. Lao Chu planned to take over the world with his army of rats, but he was stopped by the combined forces of the Mighty One and Ki Wan's spirit. The Heart was shattered and Lao Chu believed dead, but his loyal rats gathered the pieces before scampering off into the darkness, so the Emperor's actual fate is still unknown.