Jang In-sub: Biography and Filmography

Jang In-sub (born 1987) is a South Korean actor known for his diverse supporting roles across film and television dramas. Standing 178 cm tall, he has built an extensive acting portfolio participating in major motion pictures and network television series.

Portrait photograph of South Korean actor Jang In-sub — Jang In-sub

Film Career

Jang has appeared in numerous films, spanning crime thrillers, action features, and historical dramas. Notable film credits include:

Mantis (2025) as Yoon-Seok (flashback)
Kill Boksoon (2023) as Yoon-Seok
The Merciless (2017) as Min-Chul
Love, Lies (2016) as Hong-Suk
Fatal Intuition (2015) as a detective
The Phone (2015) as Department Head Kim
No Tears for the Dead (2014) as a finance crime special investigation team member
A Hard Day (2014) as a policeman
Steel Cold Winter (2013) as Young-Jae
Hwayi: A Monster Boy (2013) as Detective Chang-Ho

Television Series

In addition to his film work, Jang has established a robust television career, appearing in projects for major South Korean networks and streaming platforms. Selected television appearances include:

Filing for Love (tvN, 2026) as Cha Sung-Tae
Don't Call Me Ma'am (TV Chosun, 2025) as Oh Sang-Min
The Art of Negotiation (JTBC, 2025) as Cha Ho-Jin
The Midnight Romance in Hagwon (tvN, 2024) as Yoon Ji-Suk
Doctor Slump (JTBC, 2024) as a plastic surgeon (ep. 1)
Gyeongseong Creature (Netflix, 2023–2024) as a comrade
Korea-Khitan War (KBS2, 2023–2024) as Hwangbo Yu-Ui
Taxi Driver 2 (SBS, 2023) as Choi Sung-Eun
The One and Only (JTBC, 2021–2022) as Oh Jin-Kyu
Snowdrop (JTBC, 2021–2022) as Lee Eung-Cheol
Find Me in Your Memory (MBC, 2020) as Reporter Park Soo-Chang
Rugal (OCN, 2020) as Bradley
Suits (KBS2, 2018) as Jang Seok-Hyun
Happy Home (MBC, 2016) as Bong Man-Ho