Jeon Moo-song

as Hwa-choon

as Mr. Jin

as Mr. Choi

as Lee Young-chun (1 episode)

as Pan-soo

as Lee Jong-in / Prince Boo-young (16 episodes)

as Kim Moo-gil (Old) (4 episodes)

as Hwa-pyung's Grandfather (16 episodes)

as Jang Jin-tae

as Jae-woo

as Doctor Jo

as Father

as Jong Chul's father

as Bartender

as Professor Park

as Woodsman

as Dr. No Hee-Ahn