He played from a figurant to an international superstar, how great he is!

他从众演员做起，最后成世界巨星，不起！

Longtao generally means figurant, because they always wear Longtao robes to serve as a foil to main actors on the stage.

龙套”众演员，由于他们都穿着各色的龙套衣而得名。