Mark Lee is the main rapper and vocalist of the SM TOWN boy groups: NCT 127, NCT U, NCT DREAM, and SUPERM. He made his debut on April 9th and April 10th of 2016. He debuted at a young age, still being a high schooler when NCT finally launched. He speaks both English and Korean. He was cast into SM Entertainment through the SM casting auditions in Canada. In 2019, he debuted as a SuperM member.