Duel (South Korean TV series)

Duel is a 2017 South Korean television series starring Jung Jae-young, Kim Jung-eun, Yang Se-jong and Seo Eun-soo. It aired on OCN from June 3 to July 23, 2017 on Saturdays and Sundays at 22:00 (KST) for 16 episodes.

Synopsis
Story about Jang Deuk-cheon (Jung Jae-young), a hardened detective cop whose daughter is kidnapped. He starts to chase down the suspect using the one clue he has: Two men with the same face were at the crime scene.

Main

 * Jung Jae-young as Jang Deuk-cheon
 * Yang Se-jong as Lee Sung-joon / Lee Sung-hoon / Lee Yong-seob
 * Kim Jung-eun as Choi Jo-hye
 * Seo Eun-soo as Ryu Mi-rae

People around Jang Deuk-cheon

 * Lee Na-yoon as Jang Soo-yeon
 * Yoon Kyung-ho as Lee Hyung-sik
 * Choi Woong as Na Soo-ho

People around Choi Jo-hye

 * Lee Ye-eun as Na Song-yi
 * Lee Sung-wook as Go Bon-seok

People around Ryu Mi-rae

 * Kim Ki-doo as Kim Ik-hong

Extended

 * Lee Cheol-min as Park Yoo-shik
 * Im Il-gyu as Cha Gil-ho
 * Shim Wan-joon as Yang Man-choon
 * Jang Ri-woo as Yang Man-choon's subordinate
 * Kim Kwang-seob as Yang Man-choon's subordinate
 * Joo Boo-jin as Jang Deuk-cheon's landlord
 * Kim Ji-yoo as Ahn Hye-joo
 * Jo Jae-ryong as Jin Byung-joon
 * Jo Jae-wan as Choi Joo-sik
 * Lee Hae-young as Park Dong-seul
 * Jung Jin-seo as Park Min-ji
 * Kang Tae-ho as Kang Hyun-geun
 * Choi Kwang-je as Department Head Baek
 * Jung Doo-gyum as Oh Byung-cheon
 * Kim Si-eun as Joo-ah
 * Yoo Ha-bok as Director Han
 * Kim Nan-hee as Kim Hye-jin
 * Kim Dong-beom as Cha Ki-dong
 * Song Joon-hee as Lee Sung-hoon
 * Kim Bo-jung as Ryu Jung-sook
 * Jo Soo-hyang as Park Seo-jin
 * Uhm Soo-jung as Han Yoo-ra
 * Park Ji-il as Park San-young
 * Kang Ji-hoo as Park Seo-ryong
 * Choi Beom-ho as Jang Soo-yeon's doctor-in-charge

Special appearances

 * Joo Suk-tae as Ahn Jung-dong (Ep. 1)
 * Ha Ji-eun as Hye-joo's mother (Ep. 1)
 * Jung Soon-won as Operating victim (Ep. 1)
 * Cuckoo Crew (Ep. 2)

Production

 * Screenwriter Kim Yoon-joo is known for her hit drama Nine: Nine Time Travels, which was also co-produced by Chorokbaem Media (Duel's co-producing company).
 * Duel reunited Yang Se-jong and Seo Eun-soo, who appeared together in SBS's hit medical drama Dr. Romantic in 2016.
 * First script reading took place March 31, 2017 in Sangam-dong, Seoul, South Korea.

Ratings

 * In this table, the blue numbers represent the lowest ratings and the red numbers represent the highest ratings.
 * N/A denotes that the rating is not known.