Jang Hyuk
Jung Min-soo
Cha Hyun-jung
Han Ji-won
Kim Kang-woo
Kang Hyun-woo / Jung-ha's Younger Brother
Cha Soo-yeon
Ahn Hye-rim / Music Director
Bae Jong-ok
Park Hwa-ran
Kim Soo-ro
Bong Chan-woon / Older Brother
Kim Gyu-ri
Kim Mi-jin
Uhm Jung-hwa
Lee Jung-ha
Hwang Jung-min
Min Jae-in
Kim Hyo-jin
Kang Na-ru
Kim Dong-wook
Han Ji-woon
Lee Si-young
Jung Se-eun
Jung Eui-chul
Seo Sang-min
Shin Se-kyung
Shin Su-jung
Song Joong-ki
Yu Jae-hyuk
Clara Lee
Lee Yun-jung