완벽한 타인

유해진

Tae-soo

조진웅

Seok-ho

Lee Seo-jin

Joon-mo

Yum Jung-ah

Soo-hyun

김지수

Ye-jin

송하윤

Se-kyung

Yoon Kyeong-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)