Cassie & Co.

Loki, the Norse god of mischief, has been exiled to the human world for what was apparently was a bad joke. Along with being exiled, he’s forced to take the form of a child. He’s told the only way he can get back to the world of the gods is if he can collect auras of evil that take over human hearts, and so to do this he runs a detective agency. Loki is soon joined by a human girl named Mayura who is a maniac for mysteries, and she soon helps out in her own way. However, soon other Norse gods begin to appear, and most have the intent to assassinate Loki for reasons unclear.

Riker is an American crime drama television series that aired from March 14 until April 11, 1981.

Simon & Simon is an American detective television series that originally ran from November 24, 1981 to January 21, 1989. The series was broadcast on CBS and starred Gerald McRaney and Jameson Parker as two brothers who run a private detective agency together.

In the fictional town of Neptune, California, student Veronica Mars progresses from high school to college while moonlighting as a private investigator under the tutelage of her detective father.

Thanks to his police officer father's efforts, Shawn Spencer spent his childhood developing a keen eye for detail (and a lasting dislike of his dad). Years later, Shawn's frequent tips to the police lead to him being falsely accused of a crime he solved. Now, Shawn has no choice but to use his abilities to perpetuate his cover story: psychic crime-solving powers, all the while dragging his best friend, his dad, and the police along for the ride.

Michael Long, an undercover police officer, is shot while investigating a case and left for dead by his assailants. He is rescued by Wilton Knight, a wealthy, dying millionaire and inventor who arranges life-saving surgery, including a new face and a new identity--that of Michael Knight. Michael is then given a special computerized and indestructible car called the Knight Industries Two Thousand (nicknamed KITT), and a mission: apprehend criminals who are beyond the reach of the law. The series depicts Michael's exploits as he and KITT battle the forces of evil on behalf of the Foundation for Law and Government.

Heiter bis tödlich - Fuchs und Gans

合理的にあり得ない ～探偵・上水流涼子の解明～

Michael Shayne is an American detective television series starring Richard Denning that aired on NBC from September 30, 1960 to May 19, 1961.

Brothers work as private investigators.

Mike Hammer, Private Eye is an American syndicated television program based on the adventures of the fictitious private detective Mike Hammer, created by novelist Mickey Spillane. The show starred Stacy Keach and was seen as an attempt to revive the character he had played in Mickey Spillane's Mike Hammer and The New Mike Hammer - two moderately successful syndicated CBS series from the 1980s. Mike Hammer, Private Eye premiered on September 27, 1997. The show failed to gain a wide audience and, as a result, it was canceled after only one season. The final show of the series aired on June 14, 1998.

Snoops is an American comedy-drama television series that aired on ABC. The series, which aired from September 26, 1999 to December 19, 1999, was created by David E. Kelley. Snoops came about during the height of Kelley's fame, with both The Practice and Ally McBeal sustaining large audiences.

Jack Irish is a man getting his life back together again. A former criminal lawyer whose world imploded, he now spends his days as a part-time investigator, debt collector, apprentice cabinet maker, punter and sometime lover – the complete man really. An expert in finding those who don’t want to be found – dead or alive, Jack helps out his mates while avoiding the past. That is until the past finds him.

Jake Doyle and his ex-cop father, Malachy, run a Newfoundland detective agency. Their rugged seaside town never lacks for intriguing cases, and the Doyles don't always land on the right side of the law.

The cases of a private investigations agency run by two Vietnam War veterans and their computer geek friend from high school, armed with toughness, their own helicopter, and the third's technical ability.

Partners in Crime is an American crime drama television series that aired from September 22 until December 29, 1984.

Cannon is a CBS detective television series produced by Quinn Martin which aired from March 26, 1971 to March 3, 1976. The primary protagonist is the title character, private detective Frank Cannon, played by William Conrad. He also appeared on two episodes of Barnaby Jones. Cannon is the first Quinn Martin-produced series to be aired on a network other than ABC. A "revival" television film, The Return of Frank Cannon, was aired on November 1, 1980. In total, there were 124 episodes.

Barnaby Jones is a television detective series starring Buddy Ebsen and Lee Meriwether as father- and daughter-in-law who run a private detective firm in Los Angeles. The show ran on CBS from January 28, 1973 to April 3, 1980, beginning as a midseason replacement. William Conrad guest starred as Frank Cannon of Cannon on the first episode of Barnaby Jones, "Requiem for a Son" and the two series had a two-part crossover episode in 1975, "The Deadly Conspiracy".

Laura Holt, a licensed private detective, opens a detective agency but finds that potential clients refuse to hire a woman, however qualified. To solve the problem, Laura invents a fictitious male superior whom she names Remington Steele. Through a series of events that unfold in the first episode, "License to Steele," a former thief and con man, whose real name is never revealed, assumes the identity of Remington Steele. Behind the scenes, Laura remains firmly in charge.

Adrian Monk was once a rising star with the San Francisco Police Department, legendary for using unconventional means to solve the department's most baffling cases. But after the tragic (and still unsolved) murder of his wife Trudy, he developed an extreme case of obsessive-compulsive disorder. Now working as a private consultant, Monk continues to investigate cases in the most unconventional ways.