Lee Byung-hun
Eugene Choi / Choi Yu-jin (24 eps)
Kim Tae-ri
Go Ae-shin (24 eps)
Yoo Yeon-seok
Gu Dong-mae (24 eps)
Kim Min-jung
Kudo Hina (24 eps)
Byun Yo-han
Kim Hui-seong (24 eps)
Kim Kap-soo
Hwang Eun-san (24 eps)
Choi Moo-seong
Jang Seung-gu (24 eps)
Lee Ho-jae
Go Sa-hong (24 eps)
Kim Eui-sung
Lee Wan-ik (24 eps)
Kim Hye-eun
Yoon Ho-sun (24 eps)
Kim Byung-chul
Il-sik (24 eps)
Bae Jung-nam
Chun-sik (24 eps)
Shin Jung-keun
Servant (24 eps)
Lee Jung-eun
Haman-daek (24 eps)
Jo Woo-jin
Im Gwan-su (24 eps)
Heo Jung-eun
Young Go Ae-shin (24 eps)
Seong Yu-bin
Young Jang Seung-gu (24 eps)
Kim Na-woon
Madame Jo (24 eps)
Lee Seung-joon
King Gojong (24 eps)
Kang Shin-il
Lee Jeong-mun (24 eps)
David Lee McInnis
Kyle Moore (24 eps)
Seo Yu-jeong
Hong-pa (24 eps)
Choi Jin-ho
Lee Se-hun (24 eps)
Kim Eung-soo
Hui-seong's Grandfather (24 eps)
Oh Ah-yeon
So-ah (24 eps)
Choi Jong-won
Heungseon Daewongun (24 eps)
Lee Jung-hyun
Tsuda (24 eps)
Kim See-eun
Gwi-dan (24 eps)
Kim In-woo
Hirobumi Ito (24 eps)
Hakuryu
Head of Mushinwhe (24 eps)
Jeon Jin-seo
Teenage Eugene Choi (24 eps)
Park Ah-in
Go Ae-sun (24 eps)
Jang Dong-yoon
Jun-young (24 eps)
Nam Chang-hee
Shin Jong-min (24 eps)
Kim Kang-hoon
Young Eugene Choi (24 eps)
Kim Yong-ji
Hotaru (24 eps)
Ariane Desgagnés-Leclerc
Stella (24 eps)
Yoon Ju-man
Yu-jo (24 eps)
Lim Cheol-soo
Jeon Seung-jae (24 eps)
Park Jeong-min
Ahn Chang-ho (24 eps)
Amy Aleha
Mrs. Logan (24 eps)
Jin Goo
Ae-Shin's father (1 eps)
Kim Ji-won
Ae-Shin's mother (1 eps)
Lee Xia
Eugene's mother (1 eps)
Ji Seung-hyun
Song Young (1 eps)
Lim Se-mi
Dong-Mae's mother (1 eps)
John D. Michaels
US Minister to Japanese Legation (1 eps)
Park Ji-yeon
Yun Ho-sun (young) (1 eps)
Kim Min-jae
Do-mi (teen) (1 eps)