Jang Hyuk as Jung Min-soo

Cha Hyun-jung as Han Ji-won

Kim Kang-woo as Kang Hyun-woo / Jung-ha's Younger Brother

Cha Soo-yeon as Ahn Hye-rim / Music Director

Bae Jong-ok as Park Hwa-ran

Kim Soo-ro as Bong Chan-woon / Older Brother

Kim Gyu-ri as Kim Mi-jin

Uhm Jung-hwa as Lee Jung-ha

Hwang Jung-min as Min Jae-in

Kim Hyo-jin as Kang Na-ru

Kim Dong-wook as Han Ji-woon

Lee Si-young as Jung Se-eun

Jung Eui-chul as Seo Sang-min

Shin Se-kyung as Shin Su-jung

Song Joong-ki as Yu Jae-hyuk

Clara Lee as Lee Yun-jung