Ji Jin-hee

as Oh Hyun-woo

Yum Jung-ah

as Han Yoon-hee

Kim Yu-ri

as Choi Mi-kyeong

Yoon Hee-seok

as Ju Yeong-jak

Lee Eun-sung

as Eun-gyeol

Youn Yuh-jung

as Hyun-woo's Mother

Ban Hyo-jung

as Yoon-hee's Mother

Park Hyun-young

as Hyun-young

Kim Eung-soo

as Eung-soo

Kim Byeong-ok

as Byung-ok

Kim Sang-ho

as Gun

Jo Sang-geon

as Prison Officer

Kwon Byung-gil

as Security Manager of Prison

Lee Jae-gu

as Priest Choi

Shin Dong-ryeok

as Dong-ryuk

Jung Jin-Gak

as Prison Guard in Charge of Visitation

Byun Shin-ho

as Crying Woman

Kim Ji-young

as Female Factory Worker

Lim Sang-Yun

as Singing Demonstration Student

Lee Do-hyun

as Young Man Playing Piano at Catholic Church