The Chairman is Level 9: Cast
Moon Seong-hyun
Na Yi-soo
Kim Si-gyeong
Han Ba-tang
Hwang Hye-jin
Do Mi-sol
Choi Ji-hye
Son Eun-bin
Lee Hyo-bin
Koo Se-ra
Yoon Hyun-suk
Boo Ra-won
Cha Joon-hyuk
Seok Ho-kyu
Ki Hyun-woo
Pi Dae-hee
Lee Chang-ho
Lawyer Hwang
Kim Won-hun
Teacher Yoo
Kim Soo-bin
Teacher Baek
Kim Ri-won
Nutritionist
Hwa Sung
Na Yi-soo's Mother
Lee Seung-ju
Kang Si-eun
Jung Myeong-yeon
Han Ba-tang's Mother