Official website: http://www.gikyodai.com/
Casts
Song Kang-ho
Lee Han-kyu
Gang Dong-won
Song Ji-won
Jeon Kuk-hwan
Shadow
Park Hyeok-kwon
Go Kyung-nam
Yoon Hee-seok
Son Tae-soon
Choi Jung-woo
National Intelligence Deputy
Kwon Beom-taek
Ji Myung-hoon
Jeong In-gi
Kim Sung-hak
Jo Hyun-wu
Seong-chul
Cha Yeob
Jae-hwan
