as

Kim Gun

as

Wedding Photographer

as

Da-wit

as

Self

as

Do-hyun

as

Hae-su

as

Seo Ji-ho

as

Min-su / 'No. 125'

as

Nam-woo

as

Lee Ho-jin

as

Go Joseph

as

Seol Ji-won

as

Eun-chan

as

Kwang-kuk

as

Kim Yong-Dae

as

Chil-bok

as

Jung Hoon

as

Gae-deok

as

Yeong-hoon

as

Hoon

as

Kim In-rang

as

In-guk

as

King Myung Jong

as

Park Min-joon

as

Seung-ho

as

Jo Seo-in

as

Kim Joon

as

Park Shin-woo

as

Yoon Jung Yoon

as

Young Romance Joe

as

Ji Sang [Young]

as

Young Nam-yi

as

Dong-woo

as

Nam Seong-sik

as

Park Se Myung

as

Jong-wook

as

16-year-old Seung-ho

as

Seung Ho [16 years old] {Chapter 1, Year 1985}

as

Young Park Ji-min

as

Seok Yi

as

Cha-dol / Shi-hoo (young)

as

Ji Ho

as

Tae-gi

as

Prince Euneon

as

Prince Sun Hwa