The King: Eternal Monarch

Lee Min-ho

Lee Gon

Ages 32

Kim Go-eun

Jung Tae-eul / Luna

Ages 28

Woo Do-hwan

Jo Eun-sup / Jo-young

Ages 27

Kim Kyung-nam

Kang Shin-jae

Ages 31

Jung Eun-chae

Goo Seo-ryung / Goo Eun-ah

Ages 33

Lee Jung-jin

Lee Rim

Ages 41-42

Jeon Moo-song

Lee Jong-in / Prince Boo-young

Ages 78

Kim Yeong-ok

Noh Ok-nam

Ages 82

Jeon Bae-soo

Jung Do-in

Ages 49-50

Seo Jeong-yeon

Song Jung-hye

Ages 44

Park Won-sang

Park Moon-shik

Ages 50

Park So-jin

Jo Hae-in

Ages 33-34

Baek Hyun-joo

Lee Gon's Secretary

Ages 49-50

Kang Hong-suk

Jang Michael / Jang Mi-reuk

Ages 34

Kim Yong-ji

Myung Na-ri / Myung Seung-ah

Ages 29

Lee Hong-nae

Seok Ho-pil

Ages 30

An Si-ha

Kim Hee-joo

Ages 38

Choi Woo-sung

Kim Ki-won

Ages 22-23

Jung Hyeon-jun

Young Lee Gon / Lee Ji-hun

Ages 8

Kim Si-woo

Young Jung Tae-eul

Ages 6

Moon Woo-jin

Young Shin-jae / Kang Hyun-min

Ages 11

Noreen Joyce Guerra

Moon Seung-ih

Ages 28

Lee Hae-yeong

Yoo Kyung-moo

Ages 49

Yoon Ju-man

Young Yoo Kyung-moo

Ages 39

Hwang Young-hee

Min Hwa-yun / Park Sook-jin

Ages 51

Ryu Sung-rok

Kyu-bong

Ages 25

Heo Dong-won

Detective Shim

Ages 39-40

Song Sang-eun

Kyung-ran

Ages 29

Hwang Se-on

Park In-young

Ages 25

Shin Hyeon-jong

Lee Jung-hoon

Lee Hwang-eui

Prime Minster's Adviser

Ages 52

Kang Ki-doong

Secretary Kim

Ages 33

Jang Hae-min

Prime Minster's Staff

Ages 28

Kim Jung-young

Kim Sung-ae

Ages 47

Kwon Yul

Lee Ho (the late emperor, Lee Gon's father)

Ages 37

Yang Hyun-min

[Gambling boss]

Ages 38

Ko Dong-ok

[Gangster]

Ages 31

Tae In-ho

Choi Min Hwan

Ages 39-40

Moon Dong-hyeok

Park Jung Gu

Ages 28

Kim Gwi-seon

Park Mun-haeng

Ages 57

Kim Dong-gyun

Kang Sin Jae's father

Seo Woo-jin

Secretary Mo's son

Ages 4