as Crown Prince

as Gong Ji-chan

as MYDEAR

as Doh Su-chul

as Choi Chi-yeol (teenager)

as Choi Nak Hyun

as Choi Seok-jin

as Kang-woo

as Gong Chan Young

as Kang Joon Woo

as Chi Young

as Lee Yoo Jae

as Im Ha Jun

as Young Tae-ju

as Choi Nak-hyeon