Trigger

Park Yoon-ho

Park Gyu-jin · 10 ep

Kim Nam-gil

Lee Do · 10 ep

Kim Young-kwang

Moon Baek · 10 ep

Moon Seong-hyun

Teenage Moon Baek · 10 ep

Park Hoon

Koo Jeong-man · 10 ep

Kil Hae-yeon

Oh Gyeong-suk · 10 ep

Kim Won-hae

Cho Hyeon-sik · 10 ep

Woo Ji-hyun

Yoo Jeong-tae · 10 ep

Jung Woong-in

Yoon Won-cheol · 10 ep

Cho Han-chul

Captain Joo · 10 ep

Ahn Se-ho

Kim Deok-hyeon · 10 ep

Cha Rae-hyung

Seo Hyeong-ju · 10 ep

Jang Dong-ju

Jang Jeong-woo · 10 ep

Son Bo-seung

Seo Young-dong · 10 ep

Hong Min-gi

Kang Seong-jun · 10 ep

Kim Joong-hee

Reporter Wang · 10 ep

Park Kwang-jae

Yong-gu · 10 ep

Kang Chae-young

Park So-hyeon [Nurse] · 4 ep