Question: Are Miss Marple and The Barefoot Executive both fictional characters?

Context articles: Miss Marple (TV series)
The Barefoot Executive
Murder Most Foul
Joan Hickson
Murder at the Gallop
List of Agatha Christie's Marple episodes
Miss Marple
The Body in the Library (film)
The Thirteen Problems
Agatha Christie's Miss Marple

Miss Marple is a British television series based on the Miss Marple murder mystery novels by Agatha Christie, starring Joan Hickson in the title role.
 It aired from 26 December 1984 to 27 December 1992.
 All 12 original Miss Marple Christie novels were dramatised.
 The adaptations were written by T. R. Bowen, Julia Jones, Alan Plater, Ken Taylor and Jill Hyem, and the series was produced by George Gallaccio.
 In addition to its availability on VHS and DVD, the series began to be released on Blu-ray Disc in October 2014, marking its 30th anniversary.
The Barefoot Executive is a live-action Walt Disney Productions film released by Buena Vista Distribution in 1971 starring Kurt Russell, Joe Flynn, Wally Cox, Heather North and John Ritter (in his film debut), about a pet chimpanzee, named Raffles, who can predict the popularity of television programs.
 It was one of the "gimmick comedies" (geared towards children with a touch of adult humour for older viewers) Disney was known for in the 1960s and 1970s, and was frequently shown on "The Wonderful World of Disney" from the late 1970s through the 1980s.
Murder Most Foul is the third of four Miss Marple films made by Metro-Goldwyn-Mayer.
 Loosely based on the novel "Mrs McGinty's Dead" by Agatha Christie, it stars Margaret Rutherford as Miss Jane Marple, Bud Tingwell as Inspector Craddock, and Stringer Davis (Rutherford's real-life husband) as Mr. Stringer.
 The story is ostensibly based on the original Christie story, but notably changes the action and characters.
 Hercule Poirot is replaced by Miss Marple and most other characters are not in the original story.
Joan Bogle Hickson, OBE (5 August 1906 – 17 October 1998) was an English actress of theatre, film and television.
 She was particularly known for her role as Agatha Christie's Miss Marple in the television series "Miss Marple".
 As well as portraying Miss Marple on television, Hickson also narrated a number of "Miss Marple" stories on audio books.
Murder at the Gallop (1963) is the second of four Miss Marple films made by Metro-Goldwyn-Mayer.
 It was based on the novel "After the Funeral" by Agatha Christie, and starred Margaret Rutherford as Miss Jane Marple, Charles "Bud" Tingwell as Inspector Craddock and Stringer Davis (Rutherford's real-life husband) as Jane Marple's friend Mr. Stringer.
Agatha Christie's Marple is a British ITV television series based on the Miss Marple and other murder mystery novels by Agatha Christie.
 It is also known as Marple.
 The title character was played by Geraldine McEwan from the first to third series, until her retirement from the role.
 She was replaced by Julia McKenzie from the fourth series onwards.
 The first six episodes were all adaptations of "Miss Marple" novels by Christie.
 Subsequent episodes were derived both from works featuring Miss Marple but also Christie novels that did not feature the character.
Jane Marple, usually referred to as Miss Marple, is a fictional character appearing in 12 of Agatha Christie's crime novels and in 20 short stories.
 Miss Marple is an elderly spinster who lives in the village of St. Mary Mead and acts as an amateur consulting detective.
 Alongside Hercule Poirot, she is one of the most loved and famous 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.
The Body in the Library is a 1984 television film adaptation of Agatha Christie's 1942 detective novel "The Body in the Library", which was co-produced by the BBC and the A&E Network.
 The film uses an adapted screenplay by T. R. Bowen and was directed by Silvio Narizzano.
 Starring Joan Hickson in the title role, it was the first film presented in the British television series "Miss Marple" and premiered in three parts from 26 to 28 December 1984 on BBC One.
 In the United States the film was first broadcast on 4 January 1986 as a part of PBS's "Mystery!
".
 In his review in "The New York Times", critic John J. O'Connor wrote: "Miss Christie would no doubt approve of Joan Hickson, the veteran British character actress who plays Miss Marple... This BBC/Arts & Entertainment co-production offers an especially good example of Agatha Christie in adaptation.
 The characters are nicely realized and the suspense holds.
 Miss Hickson is lovely, neither as awesome as Miss Rutherford nor as overly cute as Helen Hayes.
 And the supporting cast is admirable, particularly Gwen Watford as Dolly and David Horovitch as Inspector Slack.
 As someone notes about the case, 'you'll have to admit it has all the bizarre elements of a cheap thriller.'
 Once hooked, you won't be able to turn it off."
The Thirteen Problems is a short story collection written by Agatha Christie and first published in the UK by Collins Crime Club in June 1932 and in the US by Dodd, Mead and Company in 1933 under the title The Tuesday Club Murders.
 The UK edition retailed at seven shillings and sixpence (7/6) and the US edition at $2.00.
 The thirteen stories feature the amateur detective Miss Marple, her nephew Raymond West, and her friend Sir Henry Clithering.
 They are the earliest stories Christie wrote about Miss Marple.
Agatha Christie's Miss Marple may refer to one of two adaptations of Agatha Christie's Miss Marple series: