Qalbimda qish — to'liq cast

Zo In-sung

as Oh Soo

Song Hye-kyo

as Oh Young

Kim Bum

as Park Jinseong

Jung Eun-ji

as Moon Heeseon

Bae Jong-ok

as Secretary Wang Hyeji

Kim Tae-woo

as Jo Moocheol

Lim Se-mi

as Son Mira

Seo Hyo-rim

as Jin Sora

Kim Kyu-chul

as Lawyer Jang Seong

Kim Yeong-hun

as Lee Myeongho

Yoo Jun

as Oh Soo (Young)