Ryu Deok-hwan
Nam-woo (voice)
Acting
Gong Hyung-jin
Jun-ho (voice)
Acting
Ahn Sung-ki
Kyung-min (voice)
Acting
Bae Jong-ok
Nam-woo's Mother (voice)
Acting
Na Moon-hee
Nam-woo's Grandmother (voice)
Acting
Jang Hang-seon
Jun-ho's Father (voice)
Acting
Lee Byung-hun
Adult Nam-woo (voice)
Acting
Lee Seok-jun
Office Colleague 1 (voice)
Acting
Nalie Lee
Sook-i (voice)
Acting