Park Seo-jun as Yong-hu

Ahn Sung-ki as Father Ahn

Woo Do-hwan as Ji-shin

Choi Woo-shik as Father Choi

Park Ji-hyun as Su-jin

Jung Ji-hoon as Ho-seok

Lee Seung-hee as Stranger

Sim Hee-seop as Father Kim

Kim See-eun as Teresa

Kim Seon-min as Angela

Jeong Eui-soon as Veronica

Kim Beom-soo as Beom-soo

Park Jae-hong as Seon-ho

Cha Si-won as Dae-hwan

Lee Seung-joon as Yong-hu's Father

Ryu Kyung-soo as Doctor

Seo Jeong-yeon as Su-jin's Mother

Jo Eun-hyung as Hong-jin

Lee Jung-hyun as Jin

Park Ji-yeol as Yeol

Shin Min-ho as Min

Mi Seok as Wan

Lee Sul as Sul

Park Jin-joo as Delivery Person

Han Hye-ji as Nurse

Jeong Da-eun as Eun-young

Seung Hyung-bae as Seon-ho's Man

Shin An-jin as Doctor

Yoon Jae-in as Radio Announcer

Lee Chan-yu as Yong-hu (young)