to perform; to play; to act
to act (a part); to play (a role)
あの役をやりたいな。
I want to play that role.
去年の舞台でこの役をやりました。
I played this role in last year's show.
プロがやるとまったく違って見えるんだよ。
When a pro performs it, it looks completely different.