유아인

Ko Kyung-chun (voice)

정유미

Il-ho (voice)

Lee Don-yong

Merlin (voice)

황석정

Witch of the North (voice)

장형윤

Black Dog / Passerby (voice)

연상호

Playground Person / Passerby (voice)

Hong Deok-pyo

Passerby (voice)

Jo Yeong-Bin

5th President (voice)