Kotomine Kirei

Priest Cursed by God
Designated to be a servant of the holy since birth, Kotomine Kirei was born twisted: He could not feel happiness or emotions, and instead craved to see others suffer. For years, Kirei tried to correct himself so he could be normal, but to no avail, even the death of his wife, who deeply loved and understood him, only brought him sadness in the sense that he wasn't able to kill her himself. He wondered if his birth was a mistake, and wondered why he existed without purpose. Now he has turned TFR in a last attempt of salvation, trying to see if the almighty power of wrestling may heal his twisted life.

Season 2
Still to no avail, his feelings haven't changed, not even his Title Belt gives him any pleasure. He wonders if maybe assassinating a Master in this Holy Grail War he might find the happiness he desperately so desires...

Season 3
Appears in his Fate/Zero self during the Time Shift.

Off-Season 3
When Dan Schneider defeated "Johnny Knoxville" in seconds, Kirei cashed in right then and there, and defeated Dan and won the title."'Yorokobe Shounen, all of this suffering... it brings me great joy.'"

Feats

 * On S2E8.5, was the first on the Elimination Chamber and lasted until the end when he fucking won. What a chad.
 * The chad priest does it again, beat V and is on his way to the title
 * Turned an off-season match that OP was forced to do because Janny was unable to play XCOM into a canon match via MITB cash-in, and winning it all just to make OP suffer. Yorokobe Shonen.