범죄소년

Lee Jung-hyun

Jang Hyo-seung

서영주

Jang Ji-gu

강래연

Ji-young

Jeong Seok-yong

Mr. Kim

Seo Young-hwa

Judge

Bae Sung-woo

Seoul Probation Officer

김하은

Juvenile Probation Counselor

강혁일

Ok-hyun

Jun Ye-jin

Kim Sae-rom

Choi Won-tae

Jae-bum

Son Hee-soon

Ji-hyeon's Mother

Jeon Young-woon

Grandfather