Yoo Hai-jin

Tae-soo

조진웅

Seok-ho

Lee Seo-jin

Joon-mo

Yum Jung-ah

Soo-hyun

김지수

Ye-jin

송하윤

Se-kyung

Yoon Kyung-ho

Young-bae

Ji Woo

So-young

최유화

Chae-young (voice)

이순재

Young-bae's Father (voice)

이도경

Ye-jin's Father (voice)

Ra Mi-ran

So-wol (voice)

조정석

Yeon-woo (voice)

Jo Dal-hwan

Detective (voice)

Kim Min-kyo

Min-soo (voice)

Jeong Seok-yong

Joon-mo's Friend (voice)

최선자

Tae-soo's Mother (voice)

정민규

Jin-seo

정지훈

Young Joon-mo