Park Ho-san began his acting career on stage in 1993 as a member of the Theater Yeonwoo Company. In 1997, he landed a minor role in director Chung Ji-young’s film Blackjack, which was followed by brief appearances in a number of movies in the succeeding years. In 2013, he acted a supporting role in the indie sports comedy The King of Jokgu, which had a world premiere at that year’s Busan International Film Festival. In 2017, he was cast in the hit tvN series Smart Prison Living, which won Best Drama at the 12th Korean Cable TV Awards. His performance in the series also earned him the Best Supporting Actor trophy at the 54th Baeksang Arts Awards. In 2018, he became part of tvN’s My Ajusshi, which scored him another Best Supporting Actor citation at the 6th APAN Star Awards. In 2018, he acted alongside Shin Ha-kyun in MBC’s Less Than Evil, in which he was nominated for an Excellence Award at the MBC Drama Awards.

Park Ho-san’s son Park Jun-ho is a South Korean rapper, who is known by his stage name Pullik. He studied dramatics at the Chung-Ang University.