Hong Seong-Gwan

Hong Seong-Gwan (Hangul: 홍성관) is a South Korean actor born on April 11, 1994. He has appeared in various television drama series and film productions, often taking on supporting and guest roles across major South Korean networks and streaming platforms.

Hong Seong-Gwan

Acting Career

Hong began his screen career appearing in television series beginning around 2018, gradually establishing a presence in supporting and minor roles. His television credits span multiple prominent networks and streaming services, including tvN, OCN, JTBC, SBS, KBS2, and TVING.

Filmography

Film

Guy With Potential For Success (2019) – prisoner

Television Series

No Tail To Tell (SBS / 2026) – Sin-Yu (ep.9)
I Am A Running Mate (TVING / 2025) – student athlete (ep.5)
Heavenly Ever After (JTBC / 2025) – animal shelter staff (ep.2)
Dr. Romantic 3 (SBS / 2023) – paramedic (ep.13, 15)
Queen of Masks (Channel A / 2023) – bartender (ep.1)
Crash Course in Romance (tvN / 2023) – ChiYeolSucks member (ep.5)
Cheer Up (SBS / 2022) – rugby team captain (ep.5-6)
Love All Play (KBS2 / 2022)
Bad and Crazy (tvN / 2021-2022) – friend of witness (ep.5)
Melancholia (tvN / 2021) – security room staff
The Road: The Tragedy of One (tvN / 2021) – detective
Lovestruck in the City (Kakao TV-Netflix / 2020-2021) – control room staff (ep.16)
Start-Up (tvN / 2020) – startup guy (ep.16)
Once Again (KBS2 / 2020)
Hi Bye, Mama! (tvN / 2020) – Kim Hye-Su's husband (ep.8)
Touch (Channel A / 2020)
Crash Landing on You (tvN / 2019-2020) – man of couple
Class of Lies (OCN / 2019) – investigator 1
Hotel Del Luna (tvN / 2019) – new detective 2
My Country: The New Age (JTBC / 2019) – injured soldier
Left-Handed Wife (KBS2 / 2019) – Chen's subordinate
Special Labor Inspector Mr. Jo (MBC / 2019) – stow-away ring boss
The Player (OCN / 2018) – detective