Composer
Director
Screenwriter
Main Role
- Yoo In NaKang Ah ReumMain Role
- Eric MunJun Ji HoonMain Role
- Im Joo HwanHyun Dae Hyun/Derek HyunMain Role
Support Role
- Kim Tae WooBan Ji Min [Director]Support Role
- Jung Suk YongKang Tae Ryong [Interpol head]Support Role
- Cha Joo YoungHwang Seo Ra [Secret agent]Support Role
- Bae In HyukKim Young Goo [Secret agent]Support Role
- Park So JinBae Doo Rae [Ah Reum's best friend]Support Role
- Kim ChungHan Bok ShimSupport Role
- Yoon So HeeSophie AhnSupport Role
- Jeon Seung BinPeter / Baek Pil Ho [Spy]Support Role
- Lee Jong WonTinker [Agent]Support Role
- Kim Hye OkHye Ra ShinSupport Role
- Jang Jae HoKim Dong TaekSupport Role
- Lee Joo WooKim Dong Ran [CEO of DDK Foods]Support Role
- Ji Hyun JoonJang Doo BongSupport Role
- Yi Chae WoonYoon Yeo JungSupport Role
- Kim Min Kyung[Nun] (ep.1)Support Role
- Ian H.W. KimLee ChenSupport Role
Guest Role
- Ki Eun SeKang Yoo Ra [Bride] (Ep. 1)Guest Role
- Jang Eui DonShin Ik Hyun (Ep. 1)Guest Role
- Foster BurdenHarrison Young (Ep. 1)Guest Role
- Yoon Tae Soo(Ep. 1)Guest Role
- Yoon Jong Won[Security] (Ep. 1-2)Guest Role
- Joey AlbrightMax Hoffman (Ep. 1, 5)Guest Role
- John D. Michaels[CIA official] (Ep. 1, 3, 5)Guest Role
- Park Sun HyeMs. Song (Ep. 1, 4, 6, 9)Guest Role
- Ok Joo Ri[Staff] (Ep. 1, 4, 6, 9)Guest Role
- Yu Hyung JunMa Do Shik (Ep. 1, 5-7, 9)Guest Role
- Shin Ki Won[Detective] (Ep. 2)Guest Role
- Choi Yoon Bin[Criminal] (Ep. 2)Guest Role
- Heo Na Kyung(Ep. 2)Guest Role
- Park Il Mok[Daehan Shooting Range employee] (Ep. 3)Guest Role
- Park Bo Eun[Nurse] (Ep. 3)Guest Role
- Oh Kyung JooPark Sung Hwan (Ep. 3, 9)Guest Role
- Jang Yong Chul[Restaurant owner] (Ep. 4, 9)Guest Role
- Seo Jeong Hoo[Watch salesman] (Ep. 5)Guest Role
- Kim Na MooChairman Kim Tak (Ep. 6)Guest Role
- Yoo Chae YeonKang Ah Reum [Child] (Ep. 6)Guest Role
- Min Dae ShikHan Kyung Shik (Ep. 6-7)Guest Role
- Ahn Hee Yeon[Hacker] (Ep. 8-9)Guest Role
- Kim Jae Heum[Junkyard man] (Ep. 7)Guest Role
- Kim Mi Hye[Anniversary shoot staff] (Ep. 7)Guest Role
- Song Chang Gyu[Taxi driver] (Ep. 11)Guest Role
- Kim Sun Ik[Detective] (Ep. 11)Guest Role
- Lee Do Hyung[Lawyer] (Ep. 12)Guest Role
- Lee Dong Hyun[Scientist] (Ep. 14)Guest Role
- Jung Tae In[Jeweler] (Ep. 16)Guest Role
- Im Yong Soon[Jeweler] (Ep. 16)Guest Role
- Jang Ga HyunVeronica Jang (Ep. 16)Guest Role
- Ha MinShao Lee (Ep. 16)Guest Role
- Joo Hee JaeHenry (Ep. 16)Guest Role
- Ju Ye EunEllen Lim (Ep. 16)Guest Role
- Lee Jin SooMichael Lam (Ep. 16)Guest Role
- Jang Joon Young[Groom] (Ep. 16)Guest Role
- Moon Ji Hoo[Doo Bong's underling]Guest Role
- Garrison Michael Farquharson-KeenerCraig Jones [Foreign VIP]Guest Role
- Lee Chae Yoon Guest Role
- Woo Sang Ki Guest Role
- Kim Shin YulWang Jin Ryong (Ep. 16)Guest Role
- Hwang Dong Ha[Computer specialist] (Ep. 7)Guest Role
- Richard Kim[Conference attendee] (Ep. 5)Guest Role
- Park Se Hoon[Police officer] (Ep. 15)Guest Role
- Kim Sun DongPhillip Zhang (Ep. 16)Guest Role
Unknown
- Lee Chae Hyun Unknown
- Joo Sang Hyun Unknown
- Ryu In Young Unknown
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