Name: Sleepground Rank: Inspector (Team Leader) Age: 30 Gender: Female Appearance: Brown hair, brown eyes, short bob cut Partner: None Team: General Team Leader Personality: Gentle and calm Ability: Profiling Affiliation: Seonghwa Police Station Name: Heugak Rank: Inspector Age: 36 Gender: Male Appearance: Black hair, yellow eyes, long hair Partner: Kim Jun-yeop Team: Investigation Team 2 Personality: Appears laid-back and lazy, but is a realist who displays sharp intuition at critical moments Ability: Mechanic Affiliation: Seonghwa Police Station Name: Soohyun Rank: Inspector Age: 35 Gender: Male Appearance: Black hair, rabbit ears, orange eyes Partner: Seung-ah Team: Investigation Team 3 Personality: An interrogator who reads the criminal's psychology with excellent insight Ability: Eloquence Affiliation: Seonghwa Police Station Name: Rather Rank: Sergeant Age: 29 Gender: Male Appearance: Red hair, red eyes Partner: Kwon Min-gu Team: Violent Crimes Team 2 Personality: An active investigator who leads cases based on excellent reflexes and initiative Ability: Action Leader Affiliation: Seonghwa Police Station Name: Choryong Rank: Sergeant Age: 29 Gender: Male Appearance: Brown hair, brown eyes Partner: Ddoni Team: Detective Team 1 Personality: Trusts the information in his head, passionate about revealing the truth, and occasionally eccentric Ability: Encyclopedia Affiliation: Seonghwa Police Station Name: Deokgae Rank: Corporal Age: 26 Gender: Male Appearance: Brown hair, dog ears, dog tail, brown eyes Partner: Oh Jun-hyun Team: Detective Team 2 Personality: A serious character who calmly analyzes information and approaches investigations rather than being emotional or impulsive Ability: Sixth Sense Affiliation: Seonghwa Police Station Name: Ddoni Rank: Corporal Age: 26 Gender: Female Appearance: Long pinkish hair, light blue eyes Partner: Choryong Team: Detective Team 1 Personality: Diligent and meticulous Affiliation: Seonghwa Police Station Name: Shin Seung-ah Rank: Corporal Age: 28 Gender: Female Appearance: Long black hair, orange eyes Partner: Soohyun Team: Investigation Team 3 Personality: Gentle and polite Affiliation: Seonghwa Police Station Name: Kwon Min-gu Rank: Inspector Age: 35 Gender: Male Appearance: Black hair, red eyes Features: A doting father to his daughter Partner: Rather Team: Violent Crimes Team 2 Personality: Possesses the responsibility and initiative expected of a Violent Crimes Team Leader Affiliation: Seonghwa Police Station Name: Oh Jun-hyun Rank: Inspector Age: 36 Gender: Male Appearance: Brown hair, brown eyes, glasses Partner: Deokgae Team: Detective Team 2 Personality: Gentle and calm Affiliation: Seonghwa Police Station Name: Kim Jun-yeop Rank: Corporal Age: 30 Gender: Male Appearance: Black hair, black eyes Partner: Heugak Team: Investigation Team 2 Personality: Skilled in computer usage and lockpicking; cool-headed and plays the role of a reliable supporter Affiliation: Seonghwa Police Station Name: Ha Jeong-ok Gender: Female Age: 51 Rank: Captain Team: Violent Crimes Team 1 Affiliation: Seonghwa Police Station Appearance: Red eyes and long black hair Personality: In a word, unstoppable and fiery; a hot-blooded detective who stops at nothing to break a criminal's spirit Name: Cha Seong-cheol Gender: Male Age: 51 Rank: Captain Team: Investigation Team 1 Affiliation: Seonghwa Police Station Appearance: Black hair and brown eyes Personality: A reliable and benevolent veteran officer who warmly cares for and looks after his juniors (formerly Heugak and Soohyun) Name: Ryu Ho-jin Gender: Male Age: 45 Rank: Captain Team: Detective Team 1 Affiliation: Seonghwa Police Station Appearance: Grey hair and grey eyes Personality: Relaxed and competent, yet possesses a mysterious character whose true thoughts are hard to read Name: Lee Jang-hoon Occupation: Police Chief Affiliation: Seonghwa Police Station Age: 56 Gender: Male Appearance: Brown hair and black eyes Personality: Appears strict and fastidious toward team members on the surface, but is a dependable and deep-thinking leader who protects the safety of his subordinates and takes responsibility for the greater good