Yi San/Cast-Guests

This is the list of extended cast / guests appearance for Yi San

• Lee Chang Hoon as Crown Prince Sado (Jeongjo's father)
• Lee Kyung Young as Han Joon Ho
• Yoo Jung Suk as Sung Song Wook (Song Yeon's brother)
• Baek Hyun Sook as Court Lady Lee
• Lee Jung Min (이정민) as Captain of the Royal Guards
• Chu Hun Yub as Yoo Deuk Gong
• Kang San as Prince Eunjeon
• Cha Jae Dol as Crown Prince Moon Hyo
• Han Sang Hyuk (한상혁) as Yoon Chang Yoon
• Kang Sang Goo (강상구) as Gook Tae Ho / Kang Doo Chi
• Jung Jae Gon as Park Je Ga
• Seo Yoon Ah as Court Lady Park Soo In
• Son Il Kwon as Oh Jung Ho (Jung Hu Kyeom's underling)
• Heo In Young as Court Lady Ki Mi
• Kim Sung Shil (김성실) as Baek Dong Soo
• Choi Bum Ho as Jeongjo's eunuch
• Won Jong Rye as Jeongjo's court lady
• Ban Hye Ra as Royal Kitchen lady
• Jo Moon Ui as Song Yeon's steward
• Lee Jung Yong as assassin Shin Gum
• Im Hyun Sik as a famous artist
• Lee Jung Sung as Government Official Chung
• HaHa as public official (cameo)
• Yoo Jae Suk as man joking with Mak Sun (cameo)
• Choi Jung Woo (cameo)
• Jo Dong Hee
• Lee Hae Woo
• Oh Se Jung
• Jun Hae Ryong
• Na Seung Ho
• Maeng Bong Hak
• Jung Young Geum
• Kim Min Chae
• Lee Seung Ki
• Lee Jong Goo
• Jung Mi Ae
• Kim Hee Ra
• Baek Min
• Lee Joong Yul
• Gi Yun Ho
• Jung Joon Ha
• Jo Jae Yoon
• Park Myung Soo
• Kim Dong Suk
• Park Young Ji
• Seung Kyu
• Lee Sang Mi
• Kim Jin Ho