Mun Ka-youngLim Ju-kyung
Чха Ын-уLee Su-ho
Хван Ин ЁпHan Seo-jun
Park You-naKang Soo-jin
Im Se-miLim Hee-kyung
Пак Хо СанLim Jae-pil
Чан Хе-джинHong Hyun-suk
Oh Eui-sikHan Joon-woo
Kim Min-kiLim Ju-young
Кан Мин-аChoi Soo-a
Lee Woo-jeKim Cho-rong
Yoon Seo-ahYoung Im Hee-kyung
Jeon Hye-wonPark Sae-mi
Йо Джу-хаHan Go-woon
Lee Il-junYoo Tae-hoon
Ли Джу АнChoi Man-shik
Ли Сан ЧжинAhn Hyun-gyu
Kim Hyun-JiKim Si-hyun
Хан Ли ЁнHa Ji-young
Jung Jun-hoLee Joo-hun
Kim Jung-hakMr. Oh
Seo Hye-wonSe-mi's Friend
Kim Ryul-HaKim Ga-young
Oh Yu-jinJoo Hye-min
Lim Hyun-sungComic Store Owner
Ahn So-rimLee Ye-rim
Ahn Sang-wooDisciplinary Teacher
Kim Beong-chounVice-principal
Koh Woo-riSelena Lee
Park Sung-jinYoo Gang-hyeon
Kim So-binClassmate
Oh Chae-eunWoo-hyeon's Girlfriend
Park Hyun JungLee Mi-hyang (Seo-jun's Mother)
Кан Чан ХиJeong Se Yeon [Su Ho & Seo Jun's friend]
Shin Jae-whiLee Sung Yong [Yongpa High student]
Hwang Jung-haByeon Joon Hyeok [Yongpa High student]
Lee Go-eunLim Joo Gyung [Young]
Lee Seung-WooLee Su Ho [Young]
Seo Sang-wonDoctor Kang [Soo Jin's father]
Ю Дам Ён[Soo Jin's mother]
Kang Cho-won[Saebom High student bully]
Lee Sun-Young[Math teacher]
Song Hoon[History teacher]
Ким Чжэ Хва[Music teacher]
Joo Se-BinJin Hee Jung [Seobom High freshman student / Jin Hee Jung [Seobom High freshman student bully]
Ли Ын Чу[Move Entertainment team leader]
Пак Ён Су[Columbus Park]
Jung Dae-ro[Hee Kyung's acquaintance]
Юн Чон Соп[Joo Hun's assistant]
ДаёнChen [Move Entertainment celebrity]
Lee Byung-Jae[Seo Jun's band member]
Ко Хан Мин[Photographer]
Park Seo-kyungLim Hee Gyung [Young]
Park Ju-HwanLim Joo Young [Young]
Ок Чу Ли[Neighborhood woman]
Choi E-sun[Yongpa High student]
Han Myeong-hwan[Yongpa High student]
Lee Tae-riWang Hyun Bin [Joo Gyung's crush]
Shin Seo-woo
Lee Jae-eun[Su Ho's housekeeper]