Casts
Jang Keun-suk
Hwang Tae Kyung
Park Shin-hye
Go Mi-nam / Go Mi-nyeo
Jung Yong-hwa
Kang Shin Woo
Lee Hong-gi
Jeremy
Uie
Yoo He Yi
Kang Soo Han
Hwang Tae Kyung
Kim Sung-ryung
Mo Hwa Ran
Jung Chan
President Ahn
Bae Geu-rin
Sa Yu-ri
Kim In-kwon
Ma Hoon-yi
Yoo So-young
"Before School" girl group member
Lee Ju-yeon
"Before School" girl group member