El rey, monarca eterno

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