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- Famous Detectives
- Private Investigators / Private Detectives
- Adrian Monk
- Arsene Lupin
- Ashton-Kirk
- Barnaby Jones
- C. Auguste Dupin
- Dan Fortune
- Dan Tanna
- Datchery
- David Addison
- Dick Barton
- Frank Faraday
- Harry Rule
- Honey West
- J.J. Gittes
- Jake Styles
- Jim Rockford
- John Shaft
- John Shaft II
- Josef Matula
- Lemmy Caution
- Lew Archer
- Michael Shayne
- Mike Hammer
- Nero Wolfe
- Nestor Burma
- Nick Carter
- Nick Ryder & Cody Allan - Riptide Detective Agency
- Peter Gunn
- Philip Marlowe
- Philo Vance
- Remmington Steele
- Richard Diamond
- Sam Spade
- Sherlock Holmes
- Simon & Simon
- Spenser
- No 1 Ladies Detective Agency
- The Thin Man
- The Three Investigators
- Thomas Magnum
- Tommy Beresford
- Veronica Mars
- Police Detectives
- Amelia Sachs
- Amos Burke
- Andy Sipowicz
- Cagney and Lacey
- Charlie Chan
- Comissaire Maigret
- Dale Cooper
- Dick Tracy
- Endeavour Morse
- Frank Pempleton
- Guido Brunetti
- Hec Ramsey
- Horst Schimanski
- Inspector Bucket
- Inspector Columbo
- Inspector Hanaud
- Inspector Morimoto
- Inspector Thorne
- Inspector Trent
- Jack Regan
- Jane Tennison
- Jim Taggart
- Joe Friday
- John Rebus
- Karen Sisco
- Kurt Wallander
- Lilly Rush
- Mac Taylor
- Martin Beck
- Monsieur Lecoq
- Nash Bridges
- Richard Jury
- Robert Goren
- Robert Ironside
- Sergeant Cuff
- Sonny Crockett
- Starsky and Hutch
- Stephan Derrick
- T.J. Hooker
- Theo Kojak
- Thomas Linley
- Van der Valk
- Amateur Detectives
- Detective Conan
- Ellery Queen
- Father Brown
- Fu Manchu
- Goldy Bear
- Hercule Poirot
- Jessica Fletcher
- Kinky Friedman
- Lord Peter Wimsey
- Miss Marple
- Nancy Drew
- Paul Temple
- Sarah Keate
- Sexton Blake
- Simon Templar
- The Famous Five
- The Hardy Boys
- Medical Examiner / Forensic Evidence Expert
- Dr. Fitz
- Dr. Mark Sloan
- Dr. R. Quincy
- Gil Grissom
- Horatio-Caine
- Jordan Cavanaugh
- Lincoln Rhyme
- Temperance Brennan
- Other Investigators
- Aloysius Pendergast
- Ben Matlock
- Boston Blackie
- Bulldog Drummond
- Craig Kennedy
- Dr. House
- Flash Casey
- Jack Bauer
- John J. Malone
- Kathryn Dance
- Lamont Cranston
- Leroy Jethro Gibbs
- Mr. Moto
- Perry Mason
- Robert Langdon
- The Great Merlini
- Tony Petrocelli
- Travis McGee
- Real Detectives
- Allan Pinkerton
- Francois Vidocq
- Jay J. Armes
- Werner Mauss
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- Other sites
- Private Detective Directory / Private Investigator Directory
- Famous Detective Names
- Famous Detectives in Fiction
- Famous PI's