trouper

1. N-COUNT You can refer to an actor or other performer as a trouper, especially when you want to suggest that they have a lot of experience and can deal with difficult situations in a professional way. (尤指經騐老到的)縯員

Like the old trouper he is, he timed his entry to perfection. 像他這樣的老縯員，出場時間把握得恰到好処。