Cast 20
Lee Min-woo
Lee Min-jae (67 episodes)
Kim Jeong-hyeon
Kim Jeong-tae (67 episodes)
Lee Eun-ju
Goo Ji-won (67 episodes)
Kim Joo-hyuk
Jung Myung-hwan (67 episodes)
Lee Na-young
Lee Hye-sung (67 episodes)
Kang Sung-yeon
Min Kyung-jin (67 episodes)
Lee Hwi-hyang
Lee Hee-jung (67 episodes)
Ji Sung
Kang Dae-Wook (67 episodes)
Kim Mi-kyeong
Cafeteria lady Kim Mi-Soon (67 episodes)
Kim Min-jung
(14 episodes)
Hong Soo-hyun
(14 episodes)
Youn Yuh-jung
Professor (14 episodes)
Jo Hyun-jae
(14 episodes)
Lee Jae-hwang
(14 episodes)
Kim Jae-in
(14 episodes)
Kim Seung-su
(14 episodes)
Kim Chang-wan
(14 episodes)
Baek Il-seob
(14 episodes)
Ki Tae-young
(14 episodes)
Kim Yeo-jin
Professor Eun Na-young (14 episodes)
Writing 2
SJ
Song Ji-na
Writer (67 episodes)
PK
Park Kyung-soo
Staff Writer (67 episodes)