Full cast of Decoy

Jang Keun-suk

Koo Do-han

12 episodes

Heo Sung-tae

Roh Sang-cheon

12 episodes

Lee Elijah

Chun Na-yeon

12 episodes

You Seong-joo

Park Seong-do

12 episodes

Park Myung-hoon

Song Young-jin

12 episodes

Oh Yeon-ah

Jeong So-ram

12 episodes

Lee Sung-wook

Kang Jong-hoon

12 episodes

Lee Seung-joon

Lee Byeong-joon

12 episodes

Hwang Jae-yeol

Detective Jung / Chung Yu Cheol

12 episodes

Kwon Hae-sung

[Gyeongcheon detective]

2 episodes

Shim So-yeon

Doctor

1 episode