Name: Park Sleepground Age: 30 Gender: Female Rank: Inspector Personality: Firm but has a playful side. Ability: Profiling (Reconstruction of the crime scene) Traits: Leader of MIU 2, has a personal friendship with Rather. Titles: Inspector Sleepground, Sleepground-nim, Noona (Rather only), Nunim (Rather only)

Name: Kim Star Age: 36 Gender: Male Rank: Inspector Personality: Very lethargic but a bit of a tsundere. Ability: Mechanic (Lockpicking, repairs, etc.) Traits: Soohyun's senior, has a terrible sense of direction. Titles: Inspector Star, Star-nim

Name: Hwang Soohyun Age: 35 Gender: Male Rank: Inspector Personality: Kind and gentle. Ability: Orator (Interrogation) Traits: Star's junior. Titles: Inspector Soohyun, Soohyun-nim, Rabbit Ears (Star only)

Name: Jeong Dinosaur Age: 29 Gender: Male Rank: Sergeant Personality: Prankster and mood maker. Ability: Encyclopedia (General knowledge) Traits: Deokgae's mentor, frequently teases Deokgae. Titles: Sergeant Dinosaur, Dinosaur-nim, Senior Gong (Deokgae only), Brainiac (Rather only)

Name: Seo Rather Age: 29 Gender: Male Rank: Sergeant Personality: Bright and cheerful. Ability: Action Leader Traits: Personal friend of Sleepground, sometimes calls her 'Nunim', carries a hammer named 'Justice'. Titles: Sergeant Rather, Rather-nim, Musclehead (Dinosaur only)

Name: Park Deokgae Age: 27 Gender: Male Rank: Officer Personality: A bit of a coward but full of passion. Ability: Sixth Sense (Five senses: Past, Sensitivity, Insight, Intuition, Extrasensory perception) Traits: Dinosaur's mentee, the primary target of Dinosaur's teasing. Titles: Officer Deokgae, Ghost-seer (Dinosaur only)