Yoo Hai-jin as Tae-soo

Cho Jin-woong as Seok-ho

Lee Seo-jin as Joon-mo

Yum Jung-ah as Soo-hyun

Kim Ji-soo as Ye-jin

Song Ha-yoon as Se-kyung

Yoon Kyung-ho as Young-bae

Ji Woo as So-young

Choi Yu-hwa as Chae-young (voice)

Lee Soon-jae as Young-bae's Father (voice)

Lee Do-gyeong as Ye-jin's Father (voice)

Ra Mi-ran as So-wol (voice)

Cho Jung-seok as Yeon-woo (voice)

Jo Dal-hwan as Detective (voice)

Kim Min-kyo as Min-soo (voice)

Jeong Seok-yong as Joon-mo's Friend (voice)

Choi Sun-ja as Tae-soo's Mother (voice)

Jeong Min-gyu as Jin-seo

Jung Ji-hoon as Young Joon-mo