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오희준

Detective Choi's Subordinate

송강호

Sang-hyun

성유빈

Young-min

송새벽

Orphanage Director

백현진

Detective Choi

배두나

Su-jin

강동원

Dong-soo

박해준

Mr. Yoon

류경수

Tae-ho

이동휘

Mr. Song

김선영

Orphanage Director's Wife

최희진

Mi-sook

김금순

Ms. Park