- Lee Byung-hun
- Â Eugene Choi 24 episodes, 2018
- Kim Tae-ri
- Â Go Ae-shin 24 episodes, 2018
- Yoo Yeon-seok
- Â Goo Dong Mae 24 episodes, 2018
- Byun Yo-han
- Â Kim Hui-seong 23 episodes, 2018
- Kim Min-jung
- Â Kudo Hina 22 episodes, 2018
- Kim Byeong-cheol
- Â Il Shik 22 episodes, 2018
- Lee Jeong-eun
- Â Haman Daek 22 episodes, 2018
- Shin Jeong-geun
- Â Ah Beom 22 episodes, 2018
- Bae Jeong-nam
- Â Choon Shik 22 episodes, 2018
- Lee Seung-joon
- Â Emperor Gwangmu 19 episodes, 2018
- Choi Moo-seong
- Â Jang Seung Gu 19 episodes, 2018
- Yoon Joo-man
- Â Yoojo 19 episodes, 2018
- Jo Woo-jin
- Â Im Gwan Soo 18 episodes, 2018
- Kang Shin-il
- Â Lee Jeong Mun 18 episodes, 2018
- Kim Eui-sung
- Â Lee Wan Ik 17 episodes, 2018
- David Lee McInnis
- Â Kyle Moore 16 episodes, 2018
- Kim Kap-su
- Â Hwang Eun San 16 episodes, 2018
- Shin Soo-yeon
- Â Su Mi 14 episodes, 2018
- Kim Joong-hee
- Â Lee Deok Moon 13 episodes, 2018
- Kim Dong-gyun
- Â Hui-seong's Father 13 episodes, 2018
- Kim Na-woon
- Â Lady Cho 13 episodes, 2018
- Kim Yong-ji
- Â Hotaru 12 episodes, 2018
- Kim Hye-Eun
- Â Hui Seong's Mother 12 episodes, 2018
- Ko Woo-rim
- Â Do Mi 12 episodes, 2018
- Lee Ho-jae
- Â Go Sa Hong 11 episodes, 2018
- Seo Yu-jeong
- Â Hong Pa 10 episodes, 2018
- Jeong In-gyeom
- Â Minister Hayashi 10 episodes, 2018
- Jang Dong-yoon
- Â Joon-yeong 9 episodes, 2018
- Park Ah-In
- Â Go Ae Soon 9 episodes, 2018
- Nam Chang-hie
- Â Dress Shop Employee 9 episodes, 2018
- Jeong Hee-tae
- Â Police Commissioner Jung 9 episodes, 2018
- Lee Si-hoon
- Â Apprentice Ko 8 episodes, 2018
- Tak Woo-suk
- Â Rickshaw Puller Jin Kook 8 episodes, 2018
- Kim Kang-hoon
- Â Eugene Choi (young) 7 episodes, 2018
- Yoon Byung-hee
- Â Kim Yong Joo 7 episodes, 2018
- Oh Ah-yeon
- Â Geisha So Ah 7 episodes, 2018
- Lee Soon-won
- Â Park Moo-geol 7 episodes, 2018
- Choi Jin-ho
- Â Minister Lee Se Hoon 6 episodes, 2018
- Kim Nam-Hee
- Â Colonel Takashi Mori 6 episodes, 2018
- Lee Joo-bin
- Â Mistress Gye-hyang 5 episodes, 2018
- Kim In-woo
- Â Hirobumi Ito 5 episodes, 2018
- Hakuryû
- Â Boss of Musin Society 4 episodes, 2018
- Lee Shi-Ah
- Â Eugene's mother 4 episodes, 2018
- Lee Jung-Hyun
- Â Tsuda 4 episodes, 2018
- Kim Kang-il
- Â Dr. Matsuyama 4 episodes, 2018
- Yoon Seul
- Â Nurse Park 4 episodes, 2018
- Fabien Yoon
- Â Secretary Leo 4 episodes, 2018
- Choi Kwang-Je
- Â Hasa Yamada 4 episodes, 2018
- Lorne Edward Oliver
- Â Horace Allen 4 episodes, 2018
- Im Chul-soo
- Â Jeon Seung Jae 3 episodes, 2018
- Minyeong Choi
- Â Goo Dong Mae (young) 3 episodes, 2018
- Derek Chouinard
- Â U.S. Marine 2 episodes, 2018
- Daniel Joey Albright
- Â Skirt Inspecting Solider / ... 3 episodes, 2018
- Sung Yoo-bin
- Â Jang Seung Gu (young) 3 episodes, 2018
- Heo Jung-eun
- Â Go Ae Shin (young) 3 episodes, 2018
- Kim Hyeon-Ok
- Â Stella 3 episodes, 2018
- Kim Joo-ryung
- Â Royal Consort Eom 2 episodes, 2018
- Yoon Ji-on
- Â Student Soldier 2 episodes, 2018
- Ji Seung-hyun
- Â Song Yeong 2 episodes, 2018
- Amy Aleha
- Â Mrs. Logan 2 episodes, 2018
- Choi Young-woo
- Â Stowaway broker 2 episodes, 2018
- Jason Nelson
- Â Joseph W. Stenson 2 episodes, 2018
- Jeong Seung-gil
- Â Lee Wan-yong 2 episodes, 2018
- Kim Kyung-min
- Â Train passenger 2 episodes, 2018
- Park Ji-Yeon
- Â Yoon Ho-sun (young) 2 episodes, 2018
- Jung Dong-geun
- Â Musin member 2 episodes, 2018
- Min-a Jeong
- Â Joon Young's sister 2 episodes, 2018
- Yi-seok Kang
- Â King Gojong (young) 2 episodes, 2018
- Kim Ji-won
- Â Ae Shin's mother 1 episode, 2018
- John D. Michaels
- Â US Minister to Japanese Legation 1 episode, 2018
- Park Jeong-min
- Â Ahn Chang Ho 1 episode, 2018
- Kim Min-jae
- Â Do Mi (adult) 1 episode, 2018
- Jin Goo
- Â Ae Shin's father 1 episode, 2018
- Im She-mi
- Â Dong Mae's mother 1 episode, 2018
- Yoon Kyung-ho
- Â Jang Seung Gu's father 1 episode, 2018
- Lee Hak-joo
- Â Kim Ahn Pyeong (young) 1 episode, 2018
- Jun Jin-seo
- Â Eugene Choi (young) 1 episode, 2018
- Woo Mi-hwa
- Â Lady Cho's person 1 episode, 2018
- Seo Sang-won
- Â Go Sa Hong's relative 1 episode, 2018
- Kim Eung-soo
- Â Hui-seong's grandfather 1 episode, 2018
- Cha Sung-je
- Â Newspaper boy 1 episode, 2018
- Park Ok-chool
- Â Woman scorned by Goo Dong-mae 1 episode, 2018
- Shim Wan-Joon
- Â Goo Dong-mae's father 1 episode, 2018
- Jo Wan-gi
- Â Eugene's father 1 episode, 2018
- Choi Jong-won
- Â Warden of Hyeon 1 episode, 2018
- Kim Woo-jin
- Â Nobleman Sa Hong 1 episode, 2018
- Jang Hae-song
- Â Hotel bellboy 1 episode, 2018
- Kwon Ban-suk
- Â Japanese military police 1 episode, 2018
- Park Soo-young
- Â Baron Kuroda 1 episode, 2018
- Darin Shaw
- Â Logan Taylor 1 episode, 2018
- Kim Jung-han
- Â Qing dynasty merchant 1 episode, 2018
- Lee Chae-kyung
- Â Noblewoman 1 episode, 2018
- Bae Gi-beom
- Â Go Sa Hong's relative 1 episode, 2018
- Woo Sang-jeon
- Â Go Sa Hong's relative 1 episode, 2018
- Felipe Arca
- Â USMC Lieutenant 1 episode, 2018
- Pete Schandall
- Â Frederick Arthur McKenzie 1 episode, 2018
