Tae-soo (as Hae-jin Yoo)
Seok-ho (as Jin-Woong Cho)
Joon-mo
Soo-hyun
Ye-jin
Se-kyung
Young-bae
Seok-ho & Ye-jin's daughter
Young Tae-soo
Ye-jin's father (voice)
Young Seok-ho
Young Soon-dae
Jin-seo
Young Joon-mo
Jin-ha
Yeon-woo (voice)
Tae-soo's father
Kim So-wol (voice)
Mi-soo (voice)
Facebook guy (voice)
Old couple grandfather (as Seong-hwan Jeong)
Young-bae's father (voice) (as Soon-jae Lee)
Joon-mo's friend (voice) (as Suk-Yong Jung)
Tae-soo's mother (as Sun Ja Choi)
Old couple grandmother
Jin-cheol
Chae-yeog (voice) (as Yu-hwa Choi)