Tang was born in Seoul to a Chinese Malaysian father and a South Korean mother, with Tang holding South Korean citizenship after his mother.

[1] Tang studies at the Department of Theater and Film Chung-Ang University.

[2] Tang made his debut as a musical actor Billy Elliot in 2010 at the age of 7, after which he continued playing in musicals such as Eileigh Seabed, West Pyeonje, KinkyBoots and Assassin.

He gained recognition for his role as Geum Eun Dong – a young North Korean soldier in Crash Landing on You (2019–2020) which became the highest rated tvN drama and the third highest-rated South Korean TV drama in cable television history.

[4] In 2021, Tang starred in Netflix original series Move to Heaven playing the leading role Han Geu-ru, a young man with Asperger syndrome, alongside Lee Je-hoon.