Composer
Director
Screenwriter
Main Role
- Yim Si WanHwang Dong JuMain Role
- Go Ah SungSeo Hye YeongMain Role
- Son Hyun JooIn Tae JunMain Role
- Park Yong WooO YeongMain Role
Support Role
- Jeon Ik RyungAn Gyeong Hui [NTS Jungang regional office]Support Role
- Moon Won JuKo Dong Won [NTS Jungang regional office]Support Role
- Moon Soo InKim Han Bin [NTS Jungang regional office]Support Role
- Jeon Bae SooJang Jeong Il [NTS Jungang regional office]Support Role
- Yeon Je WookPark Seong Ho [NTS Jungang regional office]Support Role
- Lee Kyu HoeLee Gi Dong [NTS Jungang regional office]Support Role
- Yoon Se WoongAn Seong Sik [NTS Jungang Regional Office]Support Role
- Choi Jun YoungIn Do Hun [National Tax Service HQ]Support Role
- Park Ji IlBaek Seung Ryong [NTS HQ commissioner]Support Role
- Chu Sang MiMin So Jeong [NTS HQ vice commissioner]Support Role
- Choi Bum HoCha Byeong Hun [NTS HQ]Support Role
- Lee ChangLim Chang Seok [NTS HQ]Support Role
- Kim Kuk HeeNo Seon Ju [NTS Namju Regional Office]Support Role
- Lee Do YunKim Yeong Tae [Prosecutors' office]Support Role
- Lee Chang HoonRyu Yong Sin [PQ Group financial director]Support Role
- Hwang Byung KookKim Seok Min [Reporter]Support Role
- Mi So YunYun Seong Mi [Reporter]Support Role
Guest Role
- Park Ho SanHwang Cheol Min [Dong Ju's father] (Ep. 1)Guest Role
- Kim Il Woo[Gang Seong Tax Accounting CEO] (Ep. 1)Guest Role
- Ju Yeon UByeon Bong Suk (Ep. 1)Guest Role
- Han Sang Chul[Angry wholesaler] (Ep. 1)Guest Role
- Seo Seung Won[Tax accountant] (Ep. 1)Guest Role
- Kim Ki Yeon[Gangnam madam] (Ep. 1)Guest Role
- Jang Sung Yoon[Pregnant woman] (Ep. 1-2)Guest Role
- Park Kyung Hoon[Pregnant woman's husband] (Ep. 1-2)Guest Role
- Woo HyunYang Yeong Sun [Chairman] (Ep. 1-2)Guest Role
- Jung Min Gyul[Gang Seong Tax Accounting manager] (Ep. 1, 7)Guest Role
- Noreen Joyce Guerra[NTS employee] (Ep. 1, 7)Guest Role
- Park Min SuHwang Dong Ju [Young] (Ep. 1, 8)Guest Role
- Cha Geon WooAccountant Lim [Oz F&B tax] (Ep. 2)Guest Role
- Kim Joon BumGeum Dong Sik [Oz F&B] (Ep. 2-3)Guest Role
- Park Wan KyuLee Yeong Seok [Oz F&B] (Ep. 2-3)Guest Role
- Im Seon WooSin Da Hye [Oz F&B] (Ep. 2-3)Guest Role
- Yoo Jong YeonHan Gyeong Pyo [Oz F&B] (Ep. 2-3)Guest Role
- Lee Han IkLee Jeong Ho [Yeong Seok's son] (Ep. 2-3)Guest Role
- Kim Byung GiSeo Byeong Gi [Jaesong Construction chairman] (Ep. 2, 7)Guest Role
- Jo Seung YunSeo Yeong Jae [Jaesong Construction CEO] (Ep. 2, 7)Guest Role
- Na Seok MinKwon Yeong Ho [NTS Joongang regional office] (Ep. 2-7)Guest Role
- Jo Seung Yeon[Seong Sik's wife] (Ep. 3)Guest Role
- Lee Jin Sung[NTS Jungang regional office staff] (Ep. 3)Guest Role
- Oh Seung Chan[NTS Jungang regional office staff] (Ep. 3, 7-8)Guest Role
- Kim Tae Baek[Bat man] (Ep. 4)Guest Role
- Min Choong SukMin Chang Sik [National Tax Service HQ] (Ep. 4-5)Guest Role
- Choi Jung HwaCheon Ju Yeong [National Tax Service HQ] (Ep. 4-6)Guest Role
- Choi Ji YeonSeo Eun Hui [Hye Yeong's mother] (Ep. 4-6)Guest Role
- Hong A Ron[NTS HQ inspector] (Ep. 4-7)Guest Role
- Park Jin Young[Management division staff] (Ep. 4, 8)Guest Role
- Kim Joo Ah[Chung Ho's mother] (Ep. 4-5, 7-8)Guest Role
- Song Deok HoLee Chung Ho (Ep. 4-8)Guest Role
- Kim Soo Hyung[Hye Yeong's sister] (Ep. 5)Guest Role
- Im Yong Soon[Hye Yeong's father-in-law] (Ep. 5)Guest Role
- Jo Yoo Jung[Hye Yeong's mother-in-law] (Ep. 5)Guest Role
- Lee Yu Jin[Masseuse] (Ep. 5)Guest Role
- Song Yeon SooKim U Gyun (Ep. 5)Guest Role
- Lee Dong Geun[Police officer] (Ep. 5)Guest Role
- Lee Ye BitSeo Hye Yeong [Young] (Ep. 5-6)Guest Role
- Yoo Dong HunDong Hun [Gold Cash loan shark] (Ep. 5, 7)Guest Role
- Lee Suk[Gold Cash loan shark] (Ep. 5-7)Guest Role
- Kim Do HyunCho Jin Gi [NTS Jungang regional office] (Ep. 5-7)Guest Role
- Jang Joon HyunJang Jun Hyeon [NTS Jungang regional office] (Ep. 5, 7-8)Guest Role
- Shin Gi HwanYoon Kyung Jin (Ep. 5, 7-8)Guest Role
- Baek Sung ChulRyu Do Hyeong [PQ Group] (Ep. 5, 8)Guest Role
- Kim Young SungDirector Ju [Gold Cash] (Ep. 5-8)Guest Role
- Park Sang HwiSeong Su Hyeon [NTS Jungang regional office team leader] (Ep. 6)Guest Role
- Choi Joon HyukJin Seong Gwon (Ep. 6)Guest Role
- Song Hoon[Auditor section chief] (Ep. 6)Guest Role
- Oh Il Young[Ex police chief] (Ep. 6)Guest Role
- Kim Jin[Tae Jun's secretary] (Ep. 6)Guest Role
- Kim Pyung Jo[Time Wash employee] (Ep. 6-7)Guest Role
- Seo Jeong Shik[Grand Cash CEO] (Ep. 7)Guest Role
- Im Yu Ran[Yeong Jae's wife] (Ep. 7)Guest Role
- Ahn Chan WoongTeam Leader Lee [NT Service HQ] (Ep. 7)Guest Role
- Shin Jae Hwan[Loan shark CEO] (Ep. 7)Guest Role
- Park Jung Min[Bureau 4 section chief] (Ep. 8)Guest Role
- Lee Gun MyungHa Ung [Prosecutor's office] (Ep. 8)Guest Role
- Yoon Kwan Woo[Restaurant staff] (Ep. 8)Guest Role
- Jo Joon HyungNam Si Hun [Assemblyman] (Ep. 8)Guest Role
- Jung Sae ByulCho Seon MinGuest Role
- Jeon Jeong Il[Debater]Guest Role
- Hong Seung An[NTS Team 2 Investigator 1]Guest Role
- Park Ji Won[Investigator]Guest Role
- Park Kyung Joo Guest Role
Unknown
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