Age: 24 Male Team: Violent Crimes Team 2 Ability: Physical Enhancement. His speed increases or he becomes incredibly strong. Features: Always carries a hammer named 'Justice'. He and Inspector Jam are like neighborhood siblings (though he calls her Inspector Jam at work).

Age: 23 Male Team: Criminal Investigation Team 2 Ability: Sixth Sense. Can communicate with animals and talk to spirits. Partner: Inspector Oh

Age: 36 Male Team: Investigation Team 2 Ability: Mechanic. Skilled at fixing machines and using computers. Has a lazy streak. Partner: Detective Junyeop

Age: 36 Female General Team Leader Ability: Case Reconstruction. Can investigate details by reconstructing the crime scene. She and Detective Ra are like neighborhood siblings (she calls him Detective Ra at work).

Age: 35 Male Team: Investigation Team 3 Ability: Psychological Insight. Can judge if someone is lying by analyzing their words one by one. Partner: Detective Shin Seung-ah

Age: 41 Male Team: Violent Crimes Team 2 Partner: Detective Ra A doting father. He looks intimidating at work but cherishes Detective Ra. (Possesses great strength).

Age: 34 Male Team: Criminal Investigation Team 2 Partner: Detective Deok Wears glasses. He is calm and cheerful, and takes good care of Deokgae.

Age: 21 Male Team: Investigation Team 2 Partner: Inspector Gak Skilled with computers; serves as Inspector Gak's 'navigation'.

Age: 21 Female Team: Investigation Team 1 Partner: Detective Gong In a senior-junior relationship with Detective Gong.

Age: 20 Female Team: Investigation Team 3 Partner: Inspector Su Calm and modest. She is gentle and has a fair amount of knowledge in psychology.