Seo Hyun-chul (Korean: 서현철, born 19 May 1965) is a South Korean theatre, film and television actor. He is known for his supporting roles in various TV series and films. His better known works are: 2013 medical drama series Good Doctor, 2017 TV series Revolutionary Love, 2019 thriller series Woman of 9.9 Billion, and 2021 action-comedy film Mission: Possible. In 2022, he is appearing in Thirty-Nine.