Heartstrings

Park Shin-hye

as

Lee Gyu-won

Jung Yong-hwa

as

Lee Shin

Song Chang-eui

as

Kim Suk-hyun

So I-hyeon

as

Jung Yoon-soo

Kang Min-hyuk

as

Yeo Joon-hee

Kim Yoon-hye

as

Han Hee-joo

Lee Hyun-jin

as

Hyun Ki-young

Lim Se-mi

as

Cha Bo-woon

Shin Gu

as

Lee Dong-jin

Mun Ka-young

as

Lee Jung-hyun

Lee Il-hwa

as

Song Ji-young

Sunwoo Jae-duk

as

Lee Sun-ki