Stars (in credits order)
Sang-Hoon Lee
ACTOR
Seo-hyun Ahn
Oh Ji-Na
Min-Hyuk Ji
Seo Jay
Samuel Kim
Seo Robin
Sung Ji-ru
Oh Kang-Dong
Kim Ji-young
Oh Sa-na
Seo Yuri
Kim Seon-hee
Kim Ye-eun
Maeng Sa-rang
Hyang-gi Kim
Ho Goo-hee
Park Solomon
Ji Hoon
Hwan-hee Kim
Jung Deok-hee
San-ho Kim
Eum Chi-hoon (Music teacher)
Soo-Bin Choo
Go Bong-i
Park Kyung-lim
Deok Hee's mom
Mi-seon Park
Goo-hee's mother
Cha Eun-Woo
Cha Eun Woo
Jo Ah-young
Yeo Ga Eun
Woo-Sung Hyun
Sa Gi-jun
Lee Shi-Woo
Go-hee's ex-Boyfriend
Yoo Soo In
Choi Il-jin
da-Eun Jung
Baek Song Yi
Park Seo-yeon
Jeong Bo-ra
So-hee Kim
Geum Soo-ji
Song Soo Hyun
Bae Sin-ae
Ji-Hyun Lee
Ha Rok-hee