Connection
"A drug-addicted narcotics team ace"
Someone causes a narcotics unit detective to become addicted to drugs. What is the connection between them?
Seasons
Cast (22)
Ji Sung
Jang Jae-gyeong
Jeon Mi-do
Oh Yoon-jin
Lee Hyun So
Park Joon-Seo (teen)
Kwon Yul
Park Tae-jin
Kim Kyung-nam
Won Jong-soo
Lee Sang-jun
Kim U-sung
Jung Yoo-min
Choi Ji-yeon
Jung Soon-won
Heo Joo-song
Yoon Na-moo
Park Jun-seo
Seo Yi-ra
Oh Soo-hyun
Jeong Jae-kwang
Kim Chang-soo
Cha Yeob
Oh Chi-hyeon
Lee Kang-wook
Jung Yoon-ho
Cho Han-gyeol
Young Jang Jae-gyeong
Kim Min-ju
Young Oh Yoon-jin
Park Keun-rok
Jung Sang-eui
Yoo Hee-je
Gong Jin-wook
Ryu Hye-rin
Kang Si-jung
Park Jung-pyo
Yoo Gyeong-hwan
Yoon Sa-bong
Jung Yeon-joo
Moon Sung-keun
Won Chang-ho
Han Hyeon-jun
Min Hyeon-woo
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