noun, noun which may take the genitive case particle 'no'
minor role; small part
Used for a small acting role in a play, film, or drama. Also used metaphorically for a minor role in a project or event.
彼はその映画で端役を演じた。
He played a minor role in that movie.
端役でも、彼女は全力で演じている。
Even though it's a small part, she performs it with all her might.