Who is the leading character of the play?

这个演出的主角是谁？

Who is the leading character of the play?

谁演这个剧的主角？

I'm a fan of the leading character you know?

我是这部影片主角的影迷，你知道吗？

In the drama, the leading character is ourself.

戏剧的主人公就是我们自己。

Its leading character is a detective with reputation.

它的主角是个非常有名望的侦探。