Kim Young-kwang
Woo Soo-han
Seo Hyeon-cheol
Chief Detective
Lee Ji-hoon
NIS Team Leader
Park Jin-su
Senior Detective
Kim Min-joo
Tango Instructor
Choi Jong-nam
Park Doo-sik
Na Kwang-hoon
MSS Director
Woo Kang-min
Korean Mercenary Leader
Seo Min-ju
Tango instructor