Cast of Forgotten
24 credited, in billing order.
Kang Ha-neulas Jin-seok
Kim Moo-yulas Yoo-seok / Choi Seong-uk
Moon Sung-keunas Jin-seok's Father / Mr. Park
Na Young-heeas Jin-seok's Father / Madam Min
Nam Myung-ryeolas Professor Choi
Lee Na-raas Professor Choi's Wife
Jeong Taek-hyeonas High School Yoo-seok
Jung Chan-bias Girl
Choi Goas Young Yoo-seok
Bae Seong-ilas Questionable Man 1
Lee Soon-wonas Questionable Man 2
Byeon Dong-joon
Byeon Dong-joonas Questionable Man 3
Kang Sin-guas Jin-seok's Real Father / Precinct Policeman 4
An Min-youngas Jin-seok's Real Mother
Park Jae-yeong
Park Jae-yeongas Jin-seok's Real Brother
Park Chae-ikas Mover
Kwon Jae-hwanas Precinct Policeman 1
Moon Seong-pil
Moon Seong-pilas Precinct Policeman 2
Eom In-woo
Eom In-wooas Precinct Policeman 3
Kim Tae-eung
Kim Tae-eungas Precinct Policeman 5
Shin Gi-rok
Shin Gi-rokas Precinct Conscripted Policeman
Oh Hyeon-sooas President Song
Park Kyung-chanas Employment Agency Director
Lee Dong-geunas First Aid
