Beginning his acting career as a teenager, Hwang broke through when he landed the role of Young Ben in Netflix's The Umbrella Academy.
He was in a 2017 episode of a show called Nirvanna the Band the Show.
He had a recurring role in the series 2nd Generation. He had a minor role in a 2018 episode of Titans.
He is Chinese-American.
He portrayed the younger version of Justin H. Min character in The Umbrella Academy.