Park Sung-hoon (born February 18, 1985), is a South Korean actor. He started his acting career with a small role in the film A Frozen Flower (2008). He became known through the plays Rooftop Room Cat, The History Boys, and Model Students. Park began to attract attention with supporting roles in SBS' Three Days (2014), Six Flying Dragons (2015–2016) and Don't Dare to Dream (2016). It was through the film Gonjiam: Haunted Asylum (2018) and KBS 2TV's My Only One (2018–2019) that he garnered more popularity. He stepped up as a leading role in the KBS2 Wednesday-Thursday drama series Memorials. Park is better known in recent years for his villainous roles in the dramas The Glory (2022–2023) and Queen of Tears (2024), as well as playing the transgender ex-soldier Cho Hyun-ju in season 2 (2024) and season 3 (2025) of Netflix drama Squid Game.
Hee-Soo
(Ko Tae Hoon)
Hail to Hell
(Myung-ho)
Night Fever
(Man-soo)
The Distributors
(Yu-bin)
Gonjiam: Haunted Asylum
(Sung-hoon)
High Society
(Jason (uncredited))
Forbidden Dream
(Crown Prince Yi Hyang)
Woochi: The Demon Slayer
The Son
(Han Jae-woo)
Netflix Tudum 2025
(Self)
Running Man
Black Knight
(Park Gon)
KBS Drama Special
(Go Tae-hoon)
Blue Dragon Series Awards
(Self)
Distorted
(Na Sung-Sik)
Jealousy Incarnate
(Secretary Cha)
Six Flying Dragons
(Gil Yoo)
Rich Man, Poor Woman
(Cha Do-Jin)
The Bequeathed
(Yang Jae-seok)
KBS Drama Special
(Na Pil-Seung)
My Only One
(Jang Go-Rae)
Justice
(Tak Soo-Ho)
The Glory
(Jeon Jae-jun)
Psychopath Diary
(Seo In Woo)
Movie Room
(Self)
Not Others
(Eun Jae-won)
The Kidnapping Day
(Park Sang-yoon)
KBS Drama Special
(Doh Yu-bin)
Queen of Tears
(Yoon Eun-sung)
Into The Ring
(Seo Gong-myung)
Joseon Exorcist
(Prince Yangnyeong)
You Quiz on the Block
(Self)
The Practical Guide to Love
(Song Tae-seob)
Squid Game
(Cho Hyun-ju / Player 120)
Salon Drip
(Self)