Unexpected Guest may refer to:
Unexpected Guest is a 1947 American Western film directed by George Archainbaud and starring William Boyd. The film is a serial Western and part of the Hopalong Cassidy series. It is the fifty-seventh entry in a series of sixty-six films.
The Unexpected Guest is a 1958 play by crime writer Agatha Christie.

The Unexpected Guest is a novelization by Charles Osborne of the 1958 play of the same name by crime fiction writer Agatha Christie and was first published in the UK by HarperCollins on 6 September 1999, and on 1 October 1999 in the US by St. Martin's Press.

Unexpected Guests is a compilation album by British-American rapper/producer MF Doom, released under the shortened pseudonym Doom. The album is made up of a collection of songs performed by, produced by or featuring Doom and previously released at various points throughout his career. It was released via Gold Dust Media in 2009.

Unexpected Guest at a Cancelled Party is a compilation album of unreleased material by Canadian 80s new wave band Spoons. Named after the b-side to their "Talk Back" single, it was released independently by Spoons member Gordon Deppe in June 2007.
Demon is an English rock band, formed in 1979 by vocalist Dave Hill and guitarist Mal Spooner, both hailing from Leek, Staffordshire. They are considered an important band in the new wave of British heavy metal movement.
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Dame Agatha Mary Clarissa Christie, Lady Mallowan, was an English writer. She is known for her 66 detective novels and 14 short story collections, particularly those revolving around her fictional detectives Hercule Poirot and Miss Marple. Christie also wrote the world's longest-running play, a murder mystery, The Mousetrap, and, under the pen name Mary Westmacott, six romances. In 1971 she was appointed a Dame Commander of the Order of the British Empire (DBE) for her contribution to literature.

Hercule Poirot is a fictional Belgian detective, created by Agatha Christie. Poirot is one of Christie's most famous and long-running characters, appearing in 33 novels, one play, and more than 50 short stories published between 1920 and 1975.
Miss Marple is a fictional character in Agatha Christie's crime novels and short stories. An elderly spinster who lives in the village of St. Mary Mead and acts as an amateur consulting detective, she is one of the best known of Christie's characters and has been portrayed numerous times on screen. Her first appearance was in a short story published in The Royal Magazine in December 1927, "The Tuesday Night Club", which later became the first chapter of The Thirteen Problems (1932). Her first appearance in a full-length novel was in The Murder at the Vicarage in 1930.
Poirot is a British mystery drama television series that aired on ITV from 8 January 1989 to 13 November 2013. David Suchet stars as the eponymous detective, Agatha Christie's fictional Hercule Poirot. Initially produced by LWT, the series was later produced by ITV Studios. The series also aired on VisionTV in Canada and on PBS and A&E in the United States.

The Murder of Roger Ackroyd is a work of detective fiction by British writer Agatha Christie, first published in June 1926 in the United Kingdom by William Collins, Sons and in the United States by Dodd, Mead and Company on 19 June 1926. It is the third novel to feature Hercule Poirot as the lead detective.

Joan Bogle Hickson, OBE was an English actress of theatre, film and television. She was known for her role as Agatha Christie's Miss Marple in the television series Miss Marple. She also narrated a number of Miss Marple stories on audio books.
The Mousetrap is a murder mystery play by Agatha Christie. The Mousetrap opened in London's West End in 1952, and has been running continuously since then. The longest running West End show, it has by far the longest initial run of any play in history, with its 25,000th performance taking place on 18 November 2012. The play has a twist ending, which the audience are traditionally asked not to reveal after leaving the theatre.

Hercule Poirot's Christmas is a work of detective fiction by Agatha Christie and first published in the UK by the Collins Crime Club on 19 December 1938. It retailed at seven shillings and sixpence (7/6).

A Murder Is Announced is a work of detective fiction by Agatha Christie and first published in the UK by the Collins Crime Club in June 1950 and in the US by Dodd, Mead and Company in the same month. The UK edition sold for eight shillings and sixpence (8/6) and the US edition at $2.50.
Black coffee may refer to:
Desyat Negrityat is a 1987 Soviet film adaptation of Agatha Christie's novel of the same name. It was directed by Stanislav Govorukhin, who also penned the script.
Agatha Christie's Marple is a British ITV television series loosely based on the books and short stories by British crime novelist Agatha Christie. The title character was played by Geraldine McEwan from the first to third series, until her retirement from the role, and by Julia McKenzie from the fourth series onwards. Following the conclusion of the sixth series, it was announced that the BBC had acquired the rights for the production of Agatha Christie adaptations, suggesting that ITV would be unable to make a seventh series of Marple.
Partners in Crime may refer to:
Black Coffee is a play by the British crime-fiction author Agatha Christie (1890–1976) which was produced initially in 1930. The first piece that Christie wrote for the stage, it launched a successful second career for her as a playwright.
Spider's Web is a play by crime writer Agatha Christie. Spider's Web, which premiered in London’s West End in 1954, is Agatha Christie's second most successful play, having run longer than Witness for the Prosecution, which premiered in 1953. It is surpassed only by her record-breaking The Mousetrap, which has run continuously since opening in the West End in 1952.
"The Unicorn and the Wasp" is the seventh episode of the fourth series of the revived British science fiction television series Doctor Who, which was aired by BBC One on 17 May 2008 at 19:00.
Charles Thomas Osborne was an Australian journalist, theatre and opera critic, poet and novelist. He was the assistant editor of The London Magazine from 1958 until 1966, literature director of the Arts Council of Great Britain from 1971 until 1986, and chief theatre critic of Daily Telegraph (London) from 1986 to 1991.

And Then There Were None is a mystery novel by English writer Agatha Christie, her best selling novel and described by her as the most difficult of her books to write. It was first published in the United Kingdom by the Collins Crime Club on 6 November 1939, as Ten Little Niggers, after the British blackface song, which serves as a major plot point.
In Agatha Christie's mystery novels, several characters cross over different sagas, creating a fictional universe in which most of her stories are set. This article has one table to summarize the novels with characters who occur in other Christie novels; the table is titled Crossovers by Christie. There is brief mention of characters crossing over in adaptations of the novels. Her publications, both novels and short stories, are then listed by main detective, in order of publication. Some stories or novels authorised by the estate of Agatha Christie, using the characters she created, and written long after Agatha Christie died, are included in the lists.