Question: Who was the manager of the Beatles who was portrayed in a stage play by Andrew Lancel?

full_context: Document 1: Andrew Whyment: Andrew Whyment (born 2 April 1981) is an English actor, best known for his roles in "The Royle Family" and "Coronation Street".
Document 2: Brian Epstein: Brian Samuel Epstein ( ; 19 September 1934 – 27 August 1967) was an English music entrepreneur who managed the Beatles. Epstein first discovered the Beatles in November 1961 during a lunchtime performance at The Cavern Club. He was instantly impressed and saw great potential in the group. Epstein was rejected by nearly all major recording companies in London, until he secured a meeting with George Martin, head of EMI's Parlophone label. In May 1962, Martin agreed to sign the Beatles, partly because of Epstein's conviction that the group would become internationally famous.
Document 3: Parlophone: Parlophone Records Limited (also known as Parlophone Records and Parlophone) is a German-British major record label founded in Germany in 1896 by the Carl Lindström Company as Parlophon. The British branch of the company was founded in 8 August 1923 as The Parlophone Co. Ltd., which developed a reputation in the 1920s as a leading jazz record label. On 5 October 1926, the Columbia Graphophone Company acquired Parlophone's business, name and release library, and later merged with the Gramophone Company on 31 March 1931 to become Electric & Musical Industries Limited (EMI). George Martin joined EMI in 1950 as assistant label manager, taking over as manager in 1955. Martin produced and released a mix of product including comedy recordings of The Goons, the pianist Mrs Mills, and teen idol Adam Faith.
Document 4: Andrew Lancel: Andrew Lancel (born Andrew Watkinson on 3 August 1970) is an English television and theatre actor, producer and director. He is best known for his appearance as Dr. Andrew Collin in "Cardiac Arrest", Frank Foster in the long-running ITV soap opera "Coronation Street", and in his role as DI Neil Manson in "The Bill" as well as his acclaimed portrayal of Brian Epstein in the stage play "Epstein - The Man Who Made The Beatles".
Document 5: The Beatles: The Beatles were an English rock band formed in Liverpool in 1960. With members John Lennon, Paul McCartney, George Harrison and Ringo Starr, they became widely regarded as the foremost and most influential act of the rock era. Rooted in skiffle, beat and 1950s rock and roll, the Beatles later experimented with several musical styles, ranging from pop ballads and Indian music to psychedelia and hard rock, often incorporating classical elements and unconventional recording techniques in innovative ways. In 1963 their enormous popularity first emerged as "Beatlemania", and as the group's music grew in sophistication in subsequent years, led by primary songwriters Lennon and McCartney, they came to be perceived as an embodiment of the ideals shared by the counterculture of the 1960s.
Document 6: George Martin: Sir George Henry Martin {'1': ", '2': ", '3': ", '4': "} (3 January 19268 March 2016) was an English record producer, arranger, composer, conductor, audio engineer, and musician. He was referred to as the "Fifth Beatle", including by Paul McCartney, in reference to his extensive involvement on each of the Beatles' original albums. Martin produced 30 number-one hit singles in the United Kingdom and 23 number-one hits in the United States.
Document 7: List of Coronation Street characters (2011): "Coronation Street" is a British soap opera, produced by ITV Studios. Created by writer Tony Warren, "Coronation Street" was first broadcast on ITV on 9 December 1960. It has been produced by Phil Collinson since 2010. The following is a list of characters introduced by Collinson in the show's fifty-first year, by order of first appearance. January saw three introductions; DC Moore (Pooja Shah), Marc Selby (Andrew Hall) and Frank Foster, played by former "The Bill" actor Andrew Lancel. Faye Butler (Ellie Leach), Jeff Cullen (Steven Houghton) and the soap's first Chinese character, Xin Chiang (Elizabeth Tan) arrived in February. Veteran actress Stephanie Cole joined as Sylvia Goodwin, the mother of established character Roy Cropper, in April.
Document 8: Billy J. Kramer: William Howard Ashton, (born 19 August 1943), better known by his stage name Billy J. Kramer is an English pop singer. In the 1960s, Kramer was managed by Brian Epstein, who also managed The Beatles, and he recorded several original Lennon and McCartney compositions.
Document 9: Bill Cashmore: Bill Cashmore (born 1961) is an English actor, playwright, director and co-founder of Actors in Industry. Bill started his acting career in the Cambridge Footlights and went on to have roles in "The Bill", "Casualty", "All Creatures Great and Small", "Fist of Fun" (playing The Man, the Bootleg Bootleg George Harrison, and a particularly memorable turn as The Piemaster), The News Revue and The Day Today. Bill was a writer and performer for 'Gimme 5', the live ITV children's programme. He has written several plays with Andy Powrie, including 'Trip of A Lifetime', published by Samuel French, which has been performed around the world. He has also written and performed a one-man show called "An Everyday Actor" about his experiences in the acting profession. Bill's play 'Daughter' won best play at the 2016 Ink Festival and transferred to the Pleasance theatre London. Bill is also a travel writer having written for the Sunday Telegraph and the Spectator.
Document 10: Allen Klein: Allen Klein (December 18, 1931 July 4, 2009) was an American businessman, music publisher, writers' representative, filmmaker and record label executive, most noted for his tough persona and aggressive, innovative negotiation tactics, many of which established higher industry standards for compensating recording artists. He founded ABKCO Music & Records Incorporated. Klein revolutionized the income potential of recording artists, who previously had been routinely victimized by onerous record company contracts. He first scored massive monetary and contractual windfalls for Buddy Knox and Jimmy Bowen, one-hit rockabillies of the late 1950s, then parlayed his early successes into a position managing Sam Cooke, and eventually managed the Beatles and the Rolling Stones simultaneously, along with many other artists, becoming one of the most powerful individuals in the music industry during his era.
Document 11: Daniel Coll: Daniel Coll is an English actor who played the recurring character DI Frank Blackmore in ITV's "Emmerdale". He has previously made frequent appearances in "Coronation Street" and "Heartbeat". He was in Mel Gibson's "Braveheart". Daniel Coll was one of the original dads in Billy Elliot the Musical in London's West End and played Tim in the movie Bullseye; he was also Enjolras in Les Misérables on the UK tour 1993/4. He is also a director and producer and co wrote the musical Pinocchio starring Liam Mower. He made his film directorial debut with Macbeth released in 2012 starring Oliver Tobias and which won for him best Director in the Los Angeles Independent Film Festival 2012.
Document 12: The Beatles in Hamburg: The Beatles members John Lennon, Paul McCartney, George Harrison, Stuart Sutcliffe and Pete Best regularly performed at different clubs in Hamburg, Northern Germany, during the period from August 1960 to December 1962; a chapter in the group's history which honed their performance skills, widened their reputation, and led to their first recording, which brought them to the attention of Brian Epstein.
Document 13: Frank Foster (Coronation Street): Francis John "Frank" Foster is a fictional character from the British ITV soap opera, "Coronation Street", played by Andrew Lancel. He made his debut appearance on 20 January 2011. Frank was introduced as a business associate of Carla Connor (Alison King). In December 2011, it was announced Frank would be leaving "Coronation Street" at the end of his storyline. Two months later, it was confirmed Frank would be murdered as part of a "whodunit" storyline. Five regular characters became suspects during the investigation, but his mother, Anne Foster (Gwen Taylor) eventually confessed to killing him. Frank made his last on-screen appearance on 8 March 2012.
Document 14: Cultural impact of the Beatles: The Beatles were an English rock band, formed in Liverpool in 1960. With members John Lennon, Paul McCartney, George Harrison and Ringo Starr, they became widely regarded as the foremost and most influential act of the rock era. In the early 1960s, their enormous popularity first emerged as "Beatlemania", but as the group's music grew in sophistication, led by primary songwriters Lennon and McCartney, they came to be perceived as an embodiment of the ideals shared by the counterculture of the 1960s.
Document 15: Peter Brown (music industry): Peter Brown is an American-based English businessman. After Brian Epstein recruited Brown to run the Epstein's music store in Liverpool, he became part of the Beatles' management team. He remained Epstein's and the Beatles' personal assistant until the band's dissolution. He helped found and served as board member of Apple Corps and assumed Epstein's duties after the manager's death. He went on to establish many companies and resides in New York City.
ground_truth: Brian Samuel Epstein