The most dangerous member of the DA-he'll use any means needed to solve a case, going far as to commit atrocities with a smile on his face. He has killed many people and has been fitted with a 'Decapitation Rabbit', an explosive device affixed to his neck. He is not allowed to leave his special prison under any circumstances but he has been granted a degree of freedom by cooperating with authorities to solve crimes. He has both considerable skill and intimate knowledge of the criminal mind.

A homicidal maniac yet somehow a Detective

Rank #2. A mysterious, beautiful woman dubbed the 'modern Sherlock Holmes.' She is the acting chief of the Detective Alliance, and has prevented a number of serious incidents. She resembles the girl killed right in front of Incompetent Detective when he was a young boy. She supports his development as a detective, curiously referring to him her 'lifesaver'.

A mysterious, beautiful woman dubbed Modern Holmes

Straightforward and aggressive, Rowdy is a detective with a pure and sensitive heart. Living in the mountains from a young age, she aided her father with hunting, gaining physical strength and keen senses well beyond the average human's. She overcomes difficult cases through sheer might alone. Her senses are particularly notable, for when she was given a card-matching test to gage concentration, she did not make even a single mistake. Her natural instincts are essentially akin to a superability.

An aggressive yet pure young Detective

Gourmet Detective, rank #9. Gourmet's olfactory and gustatory senses far exceed the average person's. She can sometimes even sense emotion. From a young age, she's sampled every taste imaginable, including various poisons, so she's come to enjoy their unique flavor. She has a gentle demeanor, but detests those who kill above all, as their actions take away their victim's freedom to enjoy food. Her passion emerges when saving lives and apprehending criminals.

A detective with a great sense of gustatory

His demeanor is that of the quintessential Japanese man. He has an earnest, mild personality and leads his life always thinking of others. He had aspired to become a detective for years, so upon learning of the Alliance's existence, he begged both his wife and employer to let him take on the job. He isn't showy when investigating, focusing instead on thorough, steady analysis. Combined with his personality, however, he's often told he doesn't leave much of an impression.

An office worker moonlighting as a detective

Mystic Detective, rank #7. This veteran detective specializes in cases heavily tinged with the occult. Hoping to find answers to the unsolved Case of the Vampyre, he scoured the globe for knowledge on the occult. While he tends to suspect supernatural forces at play in his cases, when calm, his investigative skills are top-class among the members of the Detective Alliance.

A wise, veteran Detective specialising in occults

Posh Detective, rank #5. A descendant of the world-famous Pinkerton National Detective Agency's founder. She is a highly-skilled detective, particularly in her sense for aesthetics. She was trained from a young age to spot forgeries and boasts top accuracy within the Detective Alliance. Haughty and conceited, she views Ideal Detective as her rival. However, she is heavily reliant upon her organization, struggling to display her full potential during solo investigations.

A skilled detective with an eye for aesthetics

Armor Detective, rank #32. An individual always seen wearing a knight's suit of armor. He is an unusual detective who utilizes the features of his armor along with his natural strength. Though he struggles with using his mental faculties, he solves cases through his unrivaled tenacity. His face was apparently scarred during a past case, and thus he refuses to remove his helmet.

A very selfless and strong yet stupid Detective

Doleful Detective, rank #14. Doleful is half-British, half-Japanese, and possesses a remarkably negative disposition. Since he was a child, Doleful has always had a remarkable penchant for attracting dangerous phenomenae that pose a threat to his well-being. His real name is Reo Gray, his birthday is November 2 and he is 17 with a rather androgynous appearance. Solved 123 cases. He has a really cautious and paranoid act.

A timid, danger Magnet of a Detective

Techie uses a wheelchair, as he was born with cerebral palsy, preventing use of his legs. His intellect far surpasses that of the average person. The brightest prodigy in the DA, he has a PhD from an overseas university. He works alongside the DA's tech department and developed his own specialized wheelchair, as well as his Seven Forensic Friends, small machines that assist with investigation. During investigations, he relies on his Friends to produce data beyond the scope of normal detectives.

A smart, young inventive Detective

Downtown Detective, rank #22. A high school student and detective skilled in gathering the latest rumors and gossip, utilizing social media and peer networks. She specializes in 'social investigation,' which narrows down her leads as she consults with those around her. Her eye-catching fashion sense belies her thoughtful nature, as she is typically quick on the uptake where others are concerned.

A detective skilled in gathering the latest gossip

Bookworm Detective, rank #15. Though only eleven years of age, she's read over 10,000 books. Her memory allows her to recite any work she's read perfectly. Both of her parents were murdered by a teacher she had admired, resulting in a distrust and lack of empathy towards others. She has the tendency to approach life from a third-person perspective.

A narrative, talented young Detective

A high school student and aspiring detective who hopes to solve the mystery of the kidnapping incident he was involved in as a child. While working part-time at a detective agency, he is recruited by the Detective Alliance, and thereby drawn into the events on the island of Morgue in the process. Wato is passionate for his line of work, but is a woefully average individual lacking both brain and brawn--resulting in him being dubbed 'Incompetent Detective' by his fellow detectives.