Gender: Female Age: 30 Rank: Inspector Appearance: Beautiful She has strong leadership and is quite kind. She is serious and charismatic when working or solving cases. She is Rhadir's neighborhood older sister. Part of the Special Division. She is also good at providing comfort. Ability: Case Reconstruction (Profiling)

Gender: Male Age: 29 Rank: Sergeant Appearance: Handsome Full of passion. Partner of Kwon Min-guk. He is Sleepground's neighborhood younger brother. Part of Violent Crimes Team 2. Some young children start tearing up just by looking at him. Ability: Action Leader

Gender: Male Age: 36 Rank: Inspector Appearance: Handsome Finds everything bothersome. He says he's going to quit every day but never does. Soohyun's senior. Has a poor sense of direction. Partner of Kim Jun-yeop. Part of Investigation Team 2. Always has coffee by his side. Ability: Mechanic, Lockpicking

Gender: Male Age: 30 Rank: Corporal Appearance: Handsome Just like Heugak, he finds everything bothersome. He is good at finding directions. Partner of Heugak. Part of Investigation Team 2. Although he finds things annoying, he gets all his work done.

Gender: Male Age: 35 Rank: Inspector Appearance: Handsome Kind-hearted. Partner of Shin Seung-ah. Part of Investigation Team 3. He maintains professional boundaries but says everything that needs to be said. Ability: Eloquence

Gender: Female Age: 26 Rank: Corporal Appearance: Beautiful Kind and nice. Partner of Soohyun. Part of Investigation Team 3. She is well-liked by young children and the elderly.

Gender: Male Age: 27 Rank: Corporal Appearance: Handsome Timid and easily frightened. Partner of Oh Jun-hyeon. Part of Detective Team 2. Ability: Sixth Sense

Gender: Male Age: 36 Rank: Inspector Appearance: Handsome Kind and relaxed. Partner of Deokgae. Part of Detective Team 2.

Gender: Male Age: 29 Rank: Sergeant Appearance: Handsome Sly, energetic, and very playful. Partner of Ttoni. Part of Detective Team 1. He loves cookies very much. Ability: Encyclopedia

Gender: Female Age: 28 Rank: Corporal Appearance: Slightly pretty Acts nice but is extremely obsessed with men. She dislikes Guest if they are female and likes them if they are male. She goes crazy for men. She is Sleepground's partner. She has zero interest in women.