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