Question: What English actor played more than 50 cinema roles and was believed to be the predecessor to an actor in Britain's Royal National Theatre?

Context articles: Robert Horwell
Inua Ellams
List of Benedict Cumberbatch performances
Tony Guilfoyle
Rory Kinnear
Benedict Cumberbatch
Robert Stephens
Laurence Olivier
Royal National Theatre
Nick Reding (actor)

Robert "Bob" Horwell is a British actor who was born in Scarborough, North Riding of Yorkshire.
 His father, whom he was named after, was a coal merchant and Audrey, his mother, was also a successful small businesswoman.
 His sisters Angela and Sue run a small designer clothing outlet in his hometown.
 He is best known for having played the role of Nick Neeson in the British soap opera "Coronation Street".
 Horwell has also appeared on stage in many productions including "War Horse", "Henry V" (Royal National Theatre), "Cyrano de Bergerac" (RSC and West End), "Lysistrata" (Sir Peter Hall Company Tour and West End), "Edmond" (Royal National Theatre, alongside Kenneth Branagh), "Alice in Wonderland" (Royal Shakespeare Company).
Inua Ellams (born Jos, Nigeria in 1984) is a UK-based poet, playwright and performer.
 Ellams has written for the Royal Shakespeare Company, Royal National Theatre and the BBC.
 His one-man show "The 14th Tale" was the awarded a Edinburgh Fringe First at the Edinburgh International Festival in 2009 and later transferred to the Royal National Theatre.
 "Barber Shop Chroncles", his play produced by the National Theatre and Fuel Theatre, was longlisted the Alfred Fagon Award in 2017.
The English actor Benedict Cumberbatch has performed in many films, television shows, theatre productions, and recorded lines for various radio programs, narrations, and video games.
 He first performed for The New Shakespeare Company at Open Air Theatre, Regent's Park for two seasons.
 He later portrayed George Tesman in Richard Eyre's revival of "Hedda Gabler" in 2005 and since then has starred in the Royal National Theatre productions "After the Dance" (2010) and "Frankenstein" (2011).
 In 2015, he played William Shakespeare's "Hamlet" at the Barbican Theatre.
Tony Guilfoyle (born March 30 1960) is an English actor.
 He was born in Washford, Somerset, England, of Irish parents Mary Josephine Guilfoyle (née Cullinan) and James (Jimmy) Guilfoyle.
 He is best known for his recurring role as the accident-prone Father Larry Duff in TV comedy "Father Ted".
 In theatre he is better known for his long collaboration with the Quebecois theatre director Robert Lepage and his company Ex Machina.
 Included in this association are Kindertoten Lieder Lincoln Centre NY and world tour, The Geometry Of Miracles performed at The Royal National Theatre and world wide, The Dragons Trilogy performed at the Barbican Theatre London and internationally plus their latest collaboration Cartes (Cards/ Pique) which played at the Roundhouse in London and then internationally.
 This last production is still touring the world and will eventually be part of a tetralogy Four shows covering the four suits of the playing cards.
 His other theatre credits are numerous and varied from Shopping And F**cking for the Royal Court Theatre in the West End to The Iceman Cometh at the Almeida Theatre in London with Kevin Spacey.
 It encompasses political, experimental theatre and the Royal Shakespeare Company ( Hanif Kureshi's play Outskirts)
Rory Michael Kinnear (born 17 February 1978) is an English actor and playwright who has worked with the Royal Shakespeare Company and the Royal National Theatre.
 In 2014, he won the Olivier Award for Best Actor for his portrayal of Shakespeare's villain Iago in the National Theatre production of "Othello".
Benedict Timothy Carlton Cumberbatch CBE (born 19 July 1976) is an English actor who has performed in film, television, theatre and radio.
 He is the son of actors Timothy Carlton and Wanda Ventham.
 Cumberbatch graduated from the University of Manchester and continued his training at the London Academy of Music and Dramatic Art, obtaining a Master of Arts in Classical Acting.
 He first performed at the Open Air Theatre, Regent's Park in Shakespearean productions and made his West End debut portraying George Tesman in Richard Eyre's revival of "Hedda Gabler" in 2005.
 Since then he has starred in the Royal National Theatre productions "After the Dance" (2010) and "Frankenstein" (2011).
 In 2015, he played William Shakespeare's "Hamlet" at the Barbican Theatre.
Sir Robert Graham Stephens (14 July 193112 November 1995) was a leading English actor in the early years of Britain's Royal National Theatre.
 He was one of the most respected actors of his generation and was at one time regarded as the natural successor to Laurence Olivier.
Laurence Kerr Olivier, Baron Olivier, {'1': ", '2': ", '3': ", '4': "} ( ; 22 May 1907 – 11 July 1989) was an English actor and director who, along with his contemporaries Ralph Richardson and John Gielgud, dominated the British stage of the mid-20th century.
 He also worked in films throughout his career, playing more than fifty cinema roles.
 Late in his career, he had considerable success in television roles.
The Royal National Theatre (generally known as the National Theatre) in London is one of the United Kingdom's three most prominent publicly funded performing arts venues, alongside the Royal Shakespeare Company and the Royal Opera House.
 Internationally, it is known as the National Theatre of Great Britain.
Nicholas Mark "Nick" Reding (born 31 August 1962 in Chiswick, London) is an English actor.
 During a career of more than two decades, he is probably best known for playing PC Pete Ramsey in "The Bill" and DI Michael Conner in the BBC crime thriller series "Silent Witness".
 His many TV and film appearances include "The Monocled Mutineer", "Bodyguards", "Oscar", "Peak Practice", "Frank Stubbs Promotes", "Minder", "Tales from the Crypt", "Bugs", "Sword of Honour", "A Touch of Frost", "Paradise Postponed", "Murder in Mind", "Boon", "The Ruth Rendell Mysteries", "Captive", "Mister Johnson", "The House of Eliott", "Police 2020", "Sunburn", "Croupier", "Judge John Deed", "The Constant Gardener", "Blood Diamond" and "Soul Boy".
 On stage he played Joseph Porter Pitt in Tony Kushner's "Angels in America" at the Royal National Theatre, as well as leading roles at the Royal Court.
 He also appeared in "Lovejoy".