Lee Gang-ok
Choi Chil-sung
Park Mu-young
Mallyon
So-hee
Yoon Kyung-ho
Chief's wife
School uniform student's family
Song Jong-Gu (voice)
Oh Jang-Woo (voice) (as a different name)
Lee Gang-ok (voice)
Locksmith who made the key
Joseon girl
Hashima Labor Clerk
Draftee
Joseon laborer
Joseon draftee
Digging driver 2
Additional Voices (voice)
Ko Choong-Ho (voice)
Japanese student
Ko Choong-Ho
Trumpet player
Joseon (Korean) draftees
'Bright Moon' Gisaeng (as Ye-Eun Kim)