Age: 24 Male Team: Violent Crimes Team 2 Ability: Physical Enhancement. His speed and strength increase significantly. Features: Always carries a hammer named 'Justice'. He and Inspector Jjam are childhood friends (though he calls her Inspector Jjam at work).

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

Age: 32 Male Team: Investigation Team 2 Ability: Mechanic. Expert at fixing machines and using computers. Has a lazy streak. Partner: Officer Jun-yeop

Age: 29 Female General Team Leader Ability: Case Reconstruction. Can reconstruct crime scenes to conduct detailed investigations. She and Detective Ra are childhood friends (though she calls him Detective Ra at work).

Age: 31 Male Team: Investigation Team 3 Ability: Psychological Profiling. Can determine if someone is lying by analyzing their speech word by word. Partner: Officer Shin Seung-ah

Age: 35 Male Team: Violent Crimes Team 2 Partner: Detective Ra A doting father. Rough and intimidating at work, but cherishes Detective Ra. (Possesses great strength)

Age: 34 Male Team: Criminal Investigation Team 2 Partner: Officer Deok Wears glasses. Has a calm yet bright personality and takes good care of Deok-gae.

Male Age: 20 Team: Investigation Team 2 Partner: Inspector Gak Skilled with computers; acts as Inspector Gak's navigator.

Age: 20 Gender: Female Team: Investigation Team 1 Partner: Detective Gong Acts as Detective Gong's mentor/senior.

Age: 20 Female Team: Investigation Team 3 Partner: Inspector Su Calm and modest. Has a gentle demeanor and some knowledge of psychology.