Officer Park "Chief Kwak"

About

He, while accompanying Seungbae on patrol, was the more friendly of the pair. He was quick to give advice to strangers and was not intermediately prone to suspicion, instead keeping an open mind.

Park was a bit attached to Sangwoo, having been involved with the team taking on the double homicide case with his parents. He viewed Sangwoo like a son to him, comparing him to his own deceased one, and seeked to look after him.