Connection

Ji Sung

Jang Jae-gyeong· 14 ep

Jeon Mi-do

Oh Yoon-jin· 14 ep

Lee Hyun So

Park Joon-Seo (teen)· 14 ep

Kwon Yul

Park Tae-jin· 14 ep

Kim Kyung-nam

Won Jong-soo· 14 ep

Lee Sang-jun

Kim U-sung· 14 ep

Jung Yoo-min

Choi Ji-yeon· 14 ep

Jung Soon-won

Heo Joo-song· 14 ep

Yoon Na-moo

Park Jun-seo· 14 ep

Seo Yi-ra

Oh Soo-hyun· 14 ep

Jeong Jae-kwang

Kim Chang-soo· 14 ep

Cha Yeob

Oh Chi-hyeon· 14 ep

Lee Kang-wook

Jung Yoon-ho· 14 ep

Cho Han-gyeol

Young Jang Jae-gyeong· 14 ep

Kim Min-ju

Young Oh Yoon-jin· 14 ep

Park Keun-rok

Jung Sang-eui· 14 ep

Yoo Hee-je

Gong Jin-wook· 14 ep

Ryu Hye-rin

Kang Si-jung· 14 ep

Park Jung-pyo

Yoo Gyeong-hwan· 14 ep

Yoon Sa-bong

Jung Yeon-joo· 14 ep

Moon Sung-keun

Won Chang-ho· 14 ep

Han Hyeon-jun

Min Hyeon-woo· 14 ep

Kim Mi-ji

Nurse (Eps 1-2)· 2 ep

Kim Moon-soo

Award Ceremony Police Officer· 1 ep

Cho Yu-jin

[Doctor]· 1 ep