troupers
n. 演员,戏团演员,老练演员( trouper的名词复数 )
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.
Like the old trouper he is, he timed his entry to perfection.
他是个老演员,出场时间把握得恰到好处。