as dean of academic affairs (Yu-seong Tech)
as Seong Hyeon-guk
2026
as Park Yoon-Ho's father
2010
as dean of academic affairs (Yu-seong Tech)
2025
as Ju Jeon
2020
as Kwak Se-hwan
2024
as Yoon Jeong-ki
2026
as Seong In-jae
2025
as Yoo Jeong-ryeol
2020
as Apt. 702 Resident
2025
as No Young-Seok
2017
as Jin Chul-joong
2022
as Assistant General Prosecutor Kim Geun-Soo
2013
as Lee Byeok
2021
as Apt. 702 Resident
2025
as Golf club member / Airplane passenger
2022
as Lee Byeok
2021
as Detective Jo
2014
as Detective Jo
2012
as Min Young-hwan
2012
as Dong Ja-seung's Father
2010
as Male Student Protester
2007
as Grocery store clerk
2001
as Jae-hyeok
2000
as Special Investigation Team
1999
as dean of academic affairs (Yu-seong Tech)
10 ep.
as Seong Hyeon-guk
5 episodes
as Park Yoon-Ho's father
1 episodes
as dean of academic affairs (Yu-seong Tech)
10 episodes
as Ju Jeon
24 episodes
as Kwak Se-hwan
16 episodes
as Yoon Jeong-ki
12 episodes
as Seong In-jae
12 episodes
as Yoo Jeong-ryeol
16 episodes
as No Young-Seok
40 episodes
as Jin Chul-joong
24 episodes
as Assistant General Prosecutor Kim Geun-Soo
1 episodes
as Jo Wan-gyu
12 episodes
as Bae PD / Bae Cheol-ho
16 episodes
as Wu Cheol-yong
12 episodes
as Kyeong Geun-jik
21 episodes
as King Sun-Jo
16 episodes
as Police Station Section Head Chief
16 episodes
as Choi Han
2 episodes
as Kim Unbu
32 episodes
as Homeroom teacher
1 episodes
as Chun Soo-beom
12 episodes
as Oh Hyun-chul
16 episodes
as Prosecutor Choi
1 episodes
