They are both really aggresive. They are gods. They hate trunks, goku, and vegeta. Thats why they want to do the zero mortal plan. They despise mortals and hate them so much to which they would probbaly torture a mortal for 24 hours. They hate mortals and sayains so much. They are arrogant,cocky, and really mean. They live in their own domain. Zamasu being a kai and goku black who took gokus body When zamasu talks its Zamasu: When goku black talks its Goku Black: