Hercule Poirot is a fictional Belgian detective created by Agatha Christie, known for his meticulous attention to detail and his distinctive mustache.

Raymond Chandler introduced the character of Philip Marlowe in his debut novel, 'The Big Sleep', published in 1939.

Agatha Christie created the beloved character of Miss Marple, a spinster detective known for her keen observation skills and her ability to solve mysteries in the quaint English village of St. Mary Mead.

G. K. Chesterton created the character of Father Brown, a Roman Catholic priest with a knack for solving mysteries, in his series of short stories.

Agatha Christie wrote the renowned detective novel 'And Then There Were None', also known as 'Ten Little Indians', in which a group of people are invited to an isolated island and are killed off one by one.

Sherlock Holmes, the iconic detective created by Arthur Conan Doyle, is renowned for his sharp intellect, deductive reasoning, and his catchphrase, 'Elementary, my dear Watson'.

Dashiell Hammett introduced the hard-boiled detective Sam Spade in his novel 'The Maltese Falcon', published in 1930.

Dorothy L. Sayers created the aristocratic detective Lord Peter Wimsey, who solves mysteries alongside his resourceful partner, Harriet Vane.

Sherlock Holmes is often depicted with a pipe in his mouth and a deerstalker hat, which have become iconic symbols associated with the character.

Ngaio Marsh introduced the detective Roderick Alleyn in her debut novel, 'A Man Lay Dead', published in 1934.

Arthur Conan Doyle wrote the renowned detective novel 'The Hound of the Baskervilles', featuring Sherlock Holmes and Dr. Watson investigating a mysterious case involving a family curse and a ghostly hound.

Miss Marple, the elderly spinster detective created by Agatha Christie, is known for her keen observation skills, her love of gardening, and her ability to solve mysteries in her quaint village.

Margery Allingham introduced the detective Albert Campion in her debut novel, 'The Crime at Black Dudley', published in 1929.

Agatha Christie wrote the groundbreaking detective novel 'The Murder of Roger Ackroyd', known for its innovative narrative structure and its shocking twist ending.

Philip Marlowe, the private investigator created by Raymond Chandler, is known for his cynical outlook, his hard-boiled approach to solving crimes, and his witty dialogue.