Series Cast 15

1. 

   Park Hae-jin

   Kim Seol-woo / Ghost Agent K (16 Episodes), Kim Seol-Woo (16 Episodes)

2. 

   Park Sung-woong

   Yeo Woon-Gwang (16 Episodes)

3. 

   Jang Hyun-sung

   Department Head Jang (16 Episodes)

4. 

   Jeong Man-sik

   Lee Dong-Hyun (16 Episodes)

5. 

   Lee Si-eon

   CEO Ji (16 Episodes)

6. 

   Oh Na-ra

   Sharon Kim (16 Episodes)

7. 

   Yeon Jeong-hun

   Mo Seung-Jae (16 Episodes)

8. 

   Tae In-ho

   Seo Ki-Chul (16 Episodes)

9. 

   Chae Jung-an

   Song Mi-Eun (16 Episodes)

10. 

    Kim Min-jung

    Cha Do-Ha (16 Episodes)

11. 

    Cheon Ho-jin

    Lawmaker Baek (16 Episodes)

12. 

    Kim Bo-mi

    Park Song-I (16 Episodes)

13. 

    Han Ji-Sun

    Choi Sul-A (16 Episodes)

14. 

    Kim Yeo-jin

    Prosecutor Lee's wife (2 Episodes)

15. 

    Song Joong-ki

    Banker (1 Episode)

Series Crew 5