In part 1, Woo Jin finds Beom Gyun in the house they used to live in when they were little. In part 2, the chairman of Human B asks to meet Beom Gyun. But it is discovered that the chairman is Minister Park Dong Geon. Beom Gyun asks where Woo Jin is.
Yeo Jin-goo
Kim Woo-Jin
Kim Kang-woo
Kim Joon-Hyuk
Gong Seung-yeon
Han Jung-Yeon
Lee Gi-kwang
Lee Ho-Soo
Kwon Hyuk-soo
Detective Oh
An Woo-yeon
Kim Beom-Gyoon
Kim Joong-ki
Kim Kyu-Cheol
Min Sung-wook
Lee Hyun-Seok
Nam Myung-ryeol
Yoon Hak-Joo
Lee Hwa-Kyum
Secretary Shin
Seo Hyun-chul
Hong Jin-Hong
Song Young-gyu
Hwang Yong-Woo
Oh Eui-sik
Lee Dong-Soo
Kim Ye-joon
Kim Bum-gyun (young)
Jung Ji-hoon
Kim Woo-jin (young)
Jung In-sun
Park Min-young
