Cast of Duel

Main cast

Lee Yea-eunas Na Song-ie

Jung Jae-youngas Jang Deuk-cheon

Kim Jung-eunas Choi Jo-hye

Yang Se-jongas Lee Sung-joon / Lee Sung-hoon

Seo Eun-sooas Ryu Mi-rae

Yoon Kyung-hoas Lee Hyung-sik

Lee Na-Yoonas Jang Soo-yeon

Kim Ki-dooas Kim Ik-hong

Lee Sung-wookas Koo Bon-seok

Choi Woongas Na Soo-ho

Kim Ji Yooas Ahn Hye-joo