Episode 15 S01 E15

Ji Sung (as Ha Woo-shin / Song Soo-hyun) Seo Ji-hye (as Eun Hye-soo) Lee Soo-kyung (as Kim Seo-hee) Heo Sung-tae (as Choi Tae-sung) Oh Dae-hwan (as Team A Leader Lee) Lee Kyung-young (as Chairman Kwon) Hwang Jeong-min (as Butler Kwon) Choi Deok-moon (as Kang Hyuk-pil) Seo Hyun-woo (as Kwon Hyun-jo) Park Hae-eun (as Yoon Sun) Cho Seong-ha (as Lee Chang-woo) Lee Si-won (as Secretary Yoon) Shin Hyeon-seung (as Lee Dong-rim) Woo Hyun-ju (as Ms Oh) Go Yoon (as Agent Park) Choi Chan-ho (as Agent Kim) Lee Ho-cheol (as Manager Jeong) Cho Dong-in (as Manager Lee) Jang Jin-hee (as Special Agent Miss Lee) Won Tae-min (as Special Agent Mr. Han) Lee Do-yeop (as Special Agent Mr. Baek)

secret organization twin brother reporter writer twins prosecutor mysterious killer mysterious death mysterious figure conglomerate heir