臺柱子 [台－－]

Jyutping toi4 cyu5 zi2
Pinyin tái zhù zi

Definitions (CC-CANTO)
  1. key actors/ actresses in a drama / theatre group
Definitions (Wiktionary)
  1. noun, figuratively
    leading light; mainstay; pillar of support
  2. noun
    key actors/actresses in a troupe