Goku Black
Goku Black (ゴクウブラック Gokū Burakku), usually referred to as Black, is the main antagonist of the "Future" Trunks Saga of Dragon Ball Super. His true identity is the original present Zamasu (ザマス Zamasu) from the unaltered main timeline, in which he stole the body of the original present Goku and sought to destroy all mortals alongside Future Zamasu. He was given the name "Goku Black" by Future Bulma when he initially referred to himself as Son Goku.