Padam, Padam... The Sound of His and Her Heartbeats

Jung Woo-sung

as

Yang Kang-chil

Ian Kim Beom

as

Lee Gook-soo

Han Ji-min

as

Jung Ji-na

Kim Sung-ryung

as

Ji-na's mother

Yoon Joo-sang

as

Prison warden ...

Kim So-hyun

as

Ji-na (young)

Na Moon-hee

as

Kim Mi-ja

Choi Tae-joon

as

Im Jung

Lee Jae-woo

as

Kim Young-cheol