Wuya

Wuya (voiced by Susan Silo and Cree Summer) was an evil Heylin witch and the most powerful being in the universe. She conquered the world 1,500 years ago, but was defeated in the first Xiaolin Showdown by the legendary Grand Master Dashi and trapped in a wooden Puzzle Box. However, many years later she was released by Jack Spicer.

She was usually seen working with a partner (often Jack Spicer) to collect Shen Gong Wu and take over the world once again. She had the power to sense Shen Gong Wu. However, she was a ghost during most of her life, needing a living person to collect them for her.