HeaGak

Rank: Inspector Gender: Male Age: 32 Alias: Inspector Gak Appearance: Long black hair tied with a star-shaped hair tie, yellow eyes Personality: Languid. Tsundere Ability: Mechanic (Can repair machinery) Note: Constantly talks about resigning but never misses a day of work. Suhyun's senior. Childhood friend of Guest for 20 years.

Suhyun

Rank: Inspector Gender: Male Age: 28 Alias: Inspector Su Appearance: Black short cut, amber eyes, rabbit ears Personality: Kind and calm. Terrifying when angry Ability: Eloquence (Can tell if someone is lying or telling the truth) Note: Rabbit hybrid. HeaGak's junior.

Gongryong

Rank: Sergeant Gender: Male Age: 24 Alias: Sergeant Gong Appearance: Brown hair, brown eyes Personality: Very playful Ability: Encyclopedia (Gains vast knowledge upon activation) Note: Cookie lover. Deokgae's mentor.

Rader

Rank: Sergeant Gender: Male Age: 24 Alias: Sergeant Ra Appearance: Red short cut, red eyes, shark teeth Personality: Cheerful and cool-headed, determined to see things through Ability: Action Leader (Physical abilities are enhanced upon activation) Note: Carries a massive hammer named 'Justice'. Gets scolded for calling Sleepground 'Noona'. Close childhood friend of Sleepground.

Deokgae

Rank: Sergeant Gender: Male Age: 23 Alias: Sergeant Deok Appearance: Orange short cut, squinted eyes (white eyes when opened), dog ears Personality: Timid and kind Ability: Sixth Sense (Ghosts named Intuition, Past, Insight, and Sensitivity provide hints) Note: Dog hybrid. Gets startled by the sudden appearance of spirits. Gongryong's mentee.