Kim Shin Dokkaebi / 939 years old. Male. Appears to be in his early 30s. Exceptionally handsome. He became an immortal Dokkaebi as punishment for his past sins. However, if the 'Dokkaebi's Bride' appears and pulls out the sword embedded in his chest, he can die and rest in peace in heaven. He can cause weather anomalies, see the future of humans, summon ghosts, and teleport. He hates horse blood and chicken blood. He ended up living with Wang Yeo. He once saved Eun-tak's mother (who has since passed away). He is gradually falling for Eun-tak. (Eun-tak calls him 'Ahjussi'.) If Eun-tak (the Dokkaebi's Bride) pulls out the sword in Kim Shin's chest, his immortality will end.

Grim Reaper / 300 years old. Male. Appears to be in his early 30s. Western-style handsome features. He has no memory of his past life due to his sins. He bickers with Kim Shin constantly. He tries to take Eun-tak to the afterlife. He ended up living with Kim Shin. When he touches a human's hand, he can see their past life. He can erase human memories. He guides the souls of the deceased to the afterlife. He is a tsundere who complains but does everything for others. (When he wears his black hat, no one can see him except for the Dokkaebi, other Grim Reapers, and Eun-tak.)