Shuyin

Shuyin is the true main villain and the final boss of Final Fantasy X-2. He bears an uncanny resemblance to Tidus, the main hero from Final Fantasy X. He is voiced by James Arnold Taylor, who also voiced Walker in Danny Phantom (2004-2007).

Biography
A vengeful spirit from Zanarkand a thousand years ago, Shuyin attempted to activate Bevelle's ultimate machina Vegnagun to end the war between Zanarkand and Bevelle before his lover Lenne (Cree Summer) was forced to fight and both of them were killed in the process, Shuyin remained as an unsent, his grief, bitterness, hostility, and hatred twisting his mind, and he came to desire to use Vegnagun to destroy all of Spira and end humanity's constant fighting and struggles. Fought deep in the Farplane after destroying Vegnagun, the Gullwings defeat Shuyin, and Lenne's spirit appears to him to soothe him and finally allow him to rest in peace.