Full cast of Trigger

Park Yoon-ho

Park Gyu-jin

10 episodes

Kim Nam-gil

Lee Do

10 episodes

Kim Young-kwang

Moon Baek

10 episodes

Moon Seong-hyun

Teenage Moon Baek

10 episodes

Park Hoon

Koo Jeong-man

10 episodes

Kil Hae-yeon

Oh Gyeong-suk

10 episodes

Kim Won-hae

Cho Hyeon-sik

10 episodes

Woo Ji-hyun

Yoo Jeong-tae

10 episodes

Jung Woong-in

Yoon Won-cheol

10 episodes

Cho Han-cheul

Captain Joo

10 episodes

Ahn Se-ho

Kim Deok-hyeon

10 episodes

Cha Rae-hyung

Seo Hyeong-ju

10 episodes

Jang Dong-ju

Jang Jeong-woo

10 episodes

Son Bo-seung

Seo Young-dong

10 episodes

Hong Min-gi

Kang Seong-jun

10 episodes

Kim Joong-hee

Reporter Wang

10 episodes

Park Kwang-jae

Yong-gu

10 episodes

Kang Chae-young

Park So-hyeon [Nurse]

4 episodes

Kong Hyun-ji

Cho Se-yeong [Hyeon-sik's Daughter]

3 episodes

Lee Suk

Jeo Won-sung [Sex Offender]

3 episodes

Shin Mun-sung

Hwang Suk-min [Inspector]

3 episodes

Lee Ji-hoon

Computer Repair Shop Owner

3 episodes

Sun Woo-sun

[Psychiatrist]

2 episodes

Kim Dae-gon

Cho Woo-tae [Jeong-man's Subordinate]

2 episodes

Jeon Su-ji

[Situation Room Chief]

2 episodes

Choi Jeong-in

[Gyu-jin's Mother]

2 episodes

Gu Hyun

Lee Do (child)

2 episodes

Do Eun-bi

Ko Ji-yeong [Water Purifier Coordinator]

1 episode

Song You-hyun

[Teacher]

1 episode

Han Sa-myeong

[Internal affairs investigator]

1 episode

Kim Yoon-jin

Anti-gun Supporter (eps 10)

1 episode

Han Se-hee

Gun Supporter

1 episode