Local Hero

Park Sun-hoo

Sun-young

Jung Soo-hyuk

Im Tae-Ho – A married police officer with 3 kids, Tae-Ho manages a subcontracting company in secrecy to support his family. He hires Chan-gyu as one of his employees to keep tabs on officials and persons.

Park Sun-hoo wife's

Director Min

Kim Seo-an

So-mi

Bae Jung-yeon – Before Shi-yoon bought the bar, Bae (often called Writer Bae because of her job) already worked part-time under President Hwang. At first she thinks Chan-gyu is the Shadow because of his hat and mask, but later on realizes that Shi-yoon is the real Shadow. She writes a fictional story based on spies, and uses Shi-yoon and President Hwang as inspiration.

Han Joon-hee

Baek Shi-yoon – A former intelligence agent, Shi-yoon was imprisoned for 3 years after a mission in Macau failed, resulting in the death of his partner, Jin Woo. After being released from prison, he bought a bar where former agents could gather. During the series, he uses the bar as a cover to investigate various crimes, and the real reason for his partner's death. As crimes happen around him, Shi-yoon can't help but provide aide to the victims, becoming "the Shadow".

Choi Chan-gyu – An aspiring police officer, Chan-gyu takes any job in order to take care of his father and brother. After seeing how Chan-gyu has athletic abilities (when he outran the guards at the police entrance exam), he is hired by Tae-Ho to secretly monitor a few targets who later end up dead. Because of this, he becomes a prime suspect for the disappearances, but is later vindicated. He discovers Shi-yoon's alter ego as the Shadow and asks him to train him. He has a crush on Writer Bae. In the end, he becomes a police constable.