Ending (エンディング) is a villain who appears as an antagonist in the Endeavor Agency Arc.
Appearance
Ending is a muscular man of average height. He wears a horizontal black and white-striped pants and shirt with an assorted vest. He wears a mask covering the entirety of his face, except for his mouth and eyes. His mask has a motif with two parallel white lines on the side of his face and several horizontal ones resembling a crosswalk. Some of his most noticeable features are his wide smile and crazed eyes.
(Source: My Hero Academia Wiki)