Lee Joo-young
Detective Lee
Song Sae-byuk
Orphanage Director
Kim Sun-young
Orphanage Director's wife
Bek Hyun-jin
Detective Choi
Oh Hee-jun
Choi's Subordinate
Jang Hye-min
Babybox Staff 2
Jeong Jong-yeol
Babybox Pastor
Lee Do-goon
Police Officer
Yang Gwon-seok
Taxi Driver
Yoon Sang-hak
Granny in front of the Laundromat
Lee Do-gyoo
4-Year-Old Woo-sung
Lee Yoo-joo
Little Girl at So-young's House 1
Kang Gyoo-rin
Little Girl at So-young's House 2
Kim Joo-eun
Little Girl at So-young's House 3
Lim Ga-Young
19-Years-Old Girl at So-young's House
Woo Sung-min
Orphanage Kid 1
Choi Yoon-woo
Orphanage Kid 2
Park Jong-hyeon
Detective 1
Park Yeong-joon
Orphanage Staff
Hwang Do-yoon
Babybox Baby 1
Kim Soo-hyeon
Babybox Baby 3
Bae Ga-jin
Babybox Nanny 1
Kim Jin-ah
Babybox Nanny 2
Son Yeong-ok
Sang-hyun's Mother
Jeong Myeong-yeon
Sang-hyun's Wife
Park Geon-woo
Young Dong-soo
Choi Gi-sang
First Director of the Orphanage
Park Byeong-gwan
Second Director of the Orphanage
Na Gyeong-cheol
News Anchor (voice)
Lee Ga-eun
Subway Announcement (voice)