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.
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.
端役 refers to a minor speaking role, whereas 仕出し specifically means a non-speaking background extra.
端役 means a minor, bit part in a play or film, the opposite of 大役's leading, important role.
端役 is a very minor bit part with little screen time, whereas 脇役 can be a substantial, memorable supporting character.
Compound of 端 (は, 'edge; minor') and 役 (やく, 'role'). The reading はやく is a standard kun'yomi compound.