두근두근 내 인생

송혜교

Mi-ra

강동원

Dae-soo

Jo Sung-mok

Ah-reum

백일섭

Mr. Jang

허준석

Seung-chan

김소진

Writer Kim

차은우

Ah-reum

채서진

Lee Seo-ha

이성민

Ah-reum's Doctor

김갑수

Dae-soo's Father

Choi Yoon-seok

Aspiring to be Director

황석정

Praying Woman

Lee Sae-ro-mi

Praying Woman

채윤희

Praying Woman

Han Seung-hyun

Dae-soo's Junior

양승걸

Mi-ra's Father

Ahn Hyeon-jeong

Mi-ra's Mother

태연

Self

티파니 영

Self

서현

Self