SMTown Wiki
LUCAS is a member of SuperM.

Wong Yuk Hei (黃旭熙) (read as Huang Xu Xi in Mandarin), better known as LUCAS (루카스) is a Hong Kong rapper, based in South Korea. He is a member of the boy group NCT and its Chinese unit WayV. He is also a member of the supergroup called SuperM.

He was born on January 25, 1999, in Hong Kong.

In April 2017, he was introduced as part of SM Entertainment's pre-debut training team SMROOKIES, and in the same month, he was featured in Ten's "Dream In A Dream" music video, released for SM STATION.

He officially debuted in 2018 as a member of NCT with NCT U's single "BOSS".

In January 2019, he debuted in the Chinese unit WayV with the EP The Vision.


TV Show[]

  • 2018: Real Men 300 (진짜 사나이
  • 2018: Law of the Jungle in Sri Lanka (정글의 법칙)
  • 2018: Knowing Brothers (아는형님)
  • 2018: Happy Together (해피투게더)
  • 2019: All For One 《以团之名》
  • 2019: Happy Camp 《快乐大本营》
  • 2019: Day Day Up 《天天向上》
  • 2019: Ace vs Ace 《王牌對王牌》
  • 2019: Keep Running Season 7 《奔跑吧》
  • 8/12/2019: Crazy Magic Show《疯狂的麦咭6》
  • 2020:The Way To Your Heart《漫游记》

Music Video Appearances[]

  • 2017: "Dream In A Dream" (夢中夢 (몽중몽)) - TEN
  • 2018: "BOSS" - NCT U
  • 2018: "Yesterday" - NCT U
  • 2018: "Coffee Break" - Jonah Nilsson X LUCAS
  • 2019: "Regular" (理所当然) - WayV
  • 2019: "Dream Launch" (梦想发射计划) - WayV
  • 2019: "Take Off" (无翼而飞) - WayV


  • Favorite Hobbies: Playing computer games
  • He was cast into SM Entertainment in 2015 through SM's Global Audition in Hong Kong.
  • His father is Chinese and his mother is Thai.
  • He is currently the 2nd tallest NCT member, after JOHNNY.
  • He thought that he was joining NCT Dream when he debuted so he practiced NCT Dream's "Chewing Gum"
  • He likes to work out.
  • He likes dogs.
  • He likes to eat a lot.
  • Ideal type: girls with long hair
  • His roommate is KUN.
  • He likes the colour pink.
  • He has a younger brother.
  • He had an Instagram account before he got accepted at SM Entertainment, his Instagram handle is @luascas_xx444
  • Now has a new nickname 'FOODCAS' for eating in visitseoul. Along with 'REACTCAS' for reacting to Kun's magic tricks and food.
  • His idol is EXO's Kai.