He became active in film beginning 2002, and won several Best Supporting Actor awards for his portrayal of a tough cop in Seven Days (2007).

Apart from his film career, Park starred in television series All About My Romance (2013), The Missing (2015), Beautiful World (2019), and My Name (2021), the lattermost of which brought him international attention.

"[8] In 2004, Park played the role of a gang leader in the film "A Family," and his performance as the villain was highly praised.

[10] Fixed: In February 2005, Park made a comeback to the theater stage, appearing as Dan in the Aligator Theatre Company's Korean debut of the hit play "Closer" by Patrick Marber, which had been adapted into a film in 2004.

[22][23] In 2010, Park acted as Kim Won-kang, a former football player who moved to East Timor in drama film A Barefoot Dream.

[26] He was one of three Joseon soldiers who are cornered by the Manchu forces and must fight a bloody battle in the middle of Manchuria.

[28] Park also costarred in a 2013 South Korean action spy film The Suspect starring Gong Yoo, and directed by Won Shin-yun.

Park's role was Min Se-hoon, a South Korean NIS operative demoted to drill sergeant after a failed mission where Ji Dong-cheol (played by Gong Yoo), spared him.

[34][35] He acted as Lieutenant Jo Han-kyung and won Best Supporting Actor at 54th Baeksang Arts Awards.

He acted as Ri Dae-bum, a North Korean police officer who secretly crosses the border into the South to track down Kim Kwang-il (played by Lee Jong-suk).

[37][38] In 2018, Park played the role of Mr. Choi in science fiction action horror film "The Witch: Part 1.

The series marks the drama debut of renowned filmmaker Kim Jee-woon and is based on the Korean webtoon of the same name drawn by Hongjacga.

[41][42] In 2022, Park costarred in Kim Jin-woo's Netflix original series A Model Family as Gwang-cheol.