Characters played by Yeri Han
Yoon Jin-Myung
Characters played by Seung-Yeon Han
Jung Ye-Eun
Characters played by Eun-bin Park
Song Ji-Won
Characters played by Hwa-young Ryu
Kang Yi-Na
Kang Yi Na
Characters played by Bak Yoon
Park Jae Wan
Characters played by Ji Woo
Yoo Eun-Jae
Characters played by Kong Sang-Ah
Han Gwan-Young's Daughter
Characters played by Ara Choi
Jo Eun
Characters played by Son Seung-Won
Im Sung Min [Ji Won's friend]
Characters played by Hye-soo Park
Yoo Eun-Jae
Characters played by Kim Min-Suk
Seo Jang-Hoon
Characters played by Lee You-Jin
Kwon Ho-chang
Characters played by Il-Joo Ji
Ko Doo-Young
Characters played by Hyun-soo Shin
Yoon Jong-Yeol
Characters played by Daniel Joey Albright
Samuel Johnson
Samuel Johnson (Invited party guest with lines)
Characters played by Lee Ji-Ha
Ho Chang's mother
Characters played by Suk Mun
Belle Epoque landlady
Characters played by Moon-cheol Nam
Ji Won's father
Characters played by Seo Ye-hwa
Su & Su receptionist
Characters played by Park Jun-Hee
The 5th Column Member
Characters played by Ahn Woo-yeon
Heimdal
Characters played by Hye-ran Ji
House owner
Characters played by Kang Yuchan
The 5th Column Member
Characters played by Kim Byeongkwan
The 5th Column Member
Characters played by Seh-Yoon Kim
The 5th Column Member
Characters played by Dong-Hun Lee
The 5th Column Member