
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.

Running Man
TV • 2010

KBS Drama Special
TV • 2010

KBS Drama Special
TV • 2010

KBS Drama Special
TV • 2010

Squid Game
TV • 2021

You Quiz on the Block
TV • 2018

Movie Room
TV • 2018

The Glory
TV • 2022

Queen of Tears
TV • 2024

Six Flying Dragons
TV • 2015

Salon Drip
TV • 2023

The Practical Guide to Love
TV • 2026

The Bequeathed
TV • 2024

Blue Dragon Series Awards
TV • 2022

My Only One
TV • 2018

Jealousy Incarnate
TV • 2016

Gonjiam: Haunted Asylum
MOVIE • 2018

Black Knight
TV • 2017