noun
villain role; bad-guy role; social outcast role
Used in film, drama, and other performance contexts for a character who is morally questionable, antagonistic, or socially marginalized. Can also refer to a person who takes on such a role in real-life group dynamics.
彼はその映画で汚れ役を演じた。
He played the villain role in that movie.
あの俳優は汚れ役が似合
That actor suits bad-guy roles.