Tracer
Members of the NTS track down the traces of shameless and corrupt money.
Ensemble
Yim Si-wan
Hwang Dong-joo
Son Hyun-joo
In Tae-joon
Ko Asung
Seo Hey-young
Park Yong-woo
Oh Young
Park Ji-il
Baek Seung-ryong
Chu Sang-mi
Min So-jung
Jeon Bae-soo
Jang Jung-il
Kim Guk-hee
No Sun-joo
Lee Gyu-hoe
Lee Ki-dong
Lee Jung-sic
Kim Young-Tae
Park Ho-san
Hwang Cheol Min [Dong Ju's father]
Choi Jung-hwa
Cheon Ju Yeong [National Tax Service HQ]