Full cast of Tracer

Yim Si-wan

Hwang Dong-joo

16 episodes

Son Hyun-joo

In Tae-joon

16 episodes

Ko A-sung

Seo Hey-young

16 episodes

Park Yong-woo

Oh Young

16 episodes

Park Ji-il

Baek Seung-ryong

16 episodes

Chu Sang-mi

Min So-jung

16 episodes

Jeon Bae-soo

Jang Jung-il

16 episodes

Kim Guk-hee

No Sun-joo

16 episodes

Lee Gyu-hoe

Lee Ki-dong

16 episodes

Lee Jung-sic

Kim Young-Tae

16 episodes

Choi Jung-hwa

Cheon Ju Yeong [National Tax Service HQ]

6 episodes

Park Ho-san

Hwang Cheol Min [Dong Ju's father]

4 episodes

Park Sang-jong

Kim Min Su [NTS HQ commissioner]

1 episode