Wong Yukhei (Chinese: 黄旭熙) known by his stage name Lucas (Hangul: 루카스) is a Chinese-Thai rapper and model born in Hong Kong on January 25, 1999. He was one of the rappers in NCT U and was part of the main rappers, lead dancers, and sub-vocalists in WayV from 2018 to 2023. In 2019, he debuted in the Kpop supergroup SuperM. Lucas departed from NCT in 2023 due to cheating allegations from an ex girlfriend. He is now a solo artist