Full Cast — The King: Eternal Monarch (2020)

Lee Min-ho

Lee Gon

Kim Go-eun

Jung Tae-eul / Luna

Woo Do-hwan

Jo Eun-sup / Jo-young

Kim Kyung-nam

Kang Shin-jae

Jung Eun-chae

Goo Seo-ryung / Goo Eun-ah

Lee Jung-jin

Lee Rim

Jeon Moo-song

Lee Jong-in / Prince Boo-young

Kim Yeong-ok

Noh Ok-nam

Jeon Bae-soo

Jung Do-in

Seo Jeong-yeon

Song Jung-hye

Park Won-sang

Park Moon-shik

Park So-jin

Jo Hae-in

Baek Hyun-joo

Lee Gon's Secretary

Kang Hong-suk

Jang Michael / Jang Mi-reuk

Kim Yong-ji

Myung Na-ri / Myung Seung-ah

Lee Hong-nae

Seok Ho-pil

An Si-ha

Kim Hee-joo

Choi Woo-sung

Kim Ki-won

Jung Hyeon-jun

Young Lee Gon / Lee Ji-hun

Kim Si-woo

Young Jung Tae-eul

Moon Woo-jin

Young Shin-jae / Kang Hyun-min

Noreen Joyce Guerra

Moon Seung-ih

Lee Hae-young

Yoo Kyung-moo

Yoon Ju-man

Young Yoo Kyung-moo

Hwang Young-hee

Min Hwa-yun / Park Sook-jin

Ryu Sung-rok

Kyu-bong

Heo Dong-won

Detective Shim

Song Sang-eun

Kyung-ran

Hwang Se-on

Park In-young

Shin Hyeon-jong

Lee Jung-hoon

Lee Hwang-eui

Prime Minster's Adviser

Kang Ki-doong

Secretary Kim

Jang Hae-min

Prime Minster's Staff

Kim Jung-young

Kim Sung-ae

Kwon Yul

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

Yang Hyun-min

[Gambling boss]

Ko Dong-ok

[Gangster]

Tae In-ho

Choi Min Hwan

Moon Dong-hyeok

Park Jung Gu