Usia pada saat memerankan Study Group

Usia pada saat memerankan Study Group

 

 

Cast and characters

 

 

Main

 

 

1. Hwang Min-hyun as Yoon Ga-min→29

2. Han Ji-eun as Lee Han-kyung→37

3. Cha Woo-min as Pi Han-wool→24

4. Lee Jong-hyun as Kim Se-hyun→27

5. Shin Su-hyun as Lee Ji-woo→29

6. Yoon Sang-jeong as Choi Hee-won→27

7. Gong Do-yu as Lee Jun→31

 

 

Supporting

 

 

8. Hong Min-gi as Park Geon-yeop→23

9. Baek Seo-hoo as Ma Min-hwan→29

10. Park Yoon-ho as Lee Hyun-woo

11. Lee Kwang-hee as Jung Do-hoon

12. Joo Yeon-woo as Kim Sun-chul

13. Kwon Hyung-seok as Lee Dae-chul

14. Han Jung-hun as Park Min-chul

15. Lim Ji-sub as Anti

16. Shim Woo-sung as Na Tae-man

17. Mo Geon-hu as Guk Gwan-woo

18. Seo Dong-gyu as a first year student at Yusung Technical High School

 

 

Special appearances

 

 

19. Kim Young-ah as Jeon Mi-hyeon

20. Kim Young-woong as Se-hyun's father

21. Lee Jong-hyuk as Pi Yeon-baek→50

22. Jung Jae-sung as the vice principal of Yusung Technical High School

23. Kim Min as Oh Jang-ho

24. Kim Jung-young as Oh Jung-hwa→52

25. Jeon Moo-song as Sun-chul's grandfather→83

26. Yoo In-soo as Choo Jae-hwang→27

27. Park Min as Bang Sang-in