Hugh Sinclair (19 May 1903 – 29 December 1962) was a British actor born in London, England, the son of a clergyman.
 He was educated at Charterhouse School and a graduate of the Royal Academy of Dramatic Art.
 His first marriage was to the actress Valerie Taylor.
 In his book "The Stage Struck Me!"
 fellow actor Neville Phillips felt Sinclair always played variations of himself, handsome, debonair, suave and witty and excelled in light comedy.
 By contrast Phillips felt his wife, who Sinclair often appeared opposite, was a dramatic actress of tremendous power with a magnificent voice.
Sir Kenneth Charles Branagh ( ; born 10 December 1960) is a Northern Irish actor, director, producer, and screenwriter originally from Belfast.
 Branagh trained at the Royal Academy of Dramatic Art in London, and in 2015 succeeded Richard Attenborough as its President.
 He has directed or starred in several film adaptations of William Shakespeare's plays, including "Henry V" (1989) (for which he was nominated for the Academy Awards for Best Actor and Best Director), "Much Ado About Nothing" (1993), "Othello" (1995), "Hamlet" (1996) (for which he was nominated for the Academy Award for Best Adapted Screenplay), "Love's Labour's Lost" (2000), and "As You Like It" (2006).
Lloyd Owen (born 14 April 1966) is an English actor.
 Trained at the National Youth Theatre and the Royal Academy of Dramatic Art (RADA) in London, he is probably best known for his portrayal of Indiana Jones's father Professor Dr. Henry Jones, Sr. in "The Young Indiana Jones Chronicles" between 1992 and 1993 and for playing Paul Bowman-MacDonald in the BBC Scotland series "Monarch of the Glen" from 2002 to 2005.
 He played the role of solicitor William Heelis in the film "Miss Potter" (2006).
 His most recent TV role was playing the US President in "You, Me and the Apocalypse" on Sky.
Richard Samuel Attenborough, Baron Attenborough, {'1': ", '2': ", '3': ", '4': "} ( ; 29 August 1923 – 24 August 2014) was an English actor, filmmaker, entrepreneur, and politician.
 He was the President of the Royal Academy of Dramatic Art (RADA) and the British Academy of Film and Television Arts (BAFTA).
 Attenborough joined the Royal Air Force during World War II and served in the film unit.
 He went on several bombing raids over Europe and filmed action from the rear gunner's position.
Graham McGrath (born 29 July 1971) is an English actor with film, television, radio and theatre credits.
 He currently also works for Merlin Entertainments based near London in Surrey, England.
 He had tuition at the Junior Academy of the Royal Academy of Music in London when he was only 4 years old.
 He also studied music and drama at the London Academy of Music and Dramatic Art (LAMDA).
 He spent 9 years at the academies, refining his acting and musical talents.
 McGrath's first appearance in front of a camera was in a TV commercial for Colgate toothpaste as a 6-year-old.
 Among his first major film roles were as the loyal Titch in the 1983 fantasy adventure film "Krull" directed by Peter Yates and as the ten-year-old Peter the Great in a 1986 mini-series.
 He also played Luca Di Marco in the popular BBC soap opera "EastEnders".
 Since then, he has been continually active in the entertainment industry and primarily made the transition from child to adult star in his native England.
Edward Olive (born 4 January 1970, in Dublin, Ireland) is a film and television actor.
 He was a commercial litigation solicitor in London and Paris until pursuing his interests working as a professional screen actor in the UK, France and from 2002 based out of Madrid, Spain.
 He studied drama in London at the City Literary Institute, Morley College and The Actor's Centre, as well as taking courses in the Royal Academy of Dramatic Art (RADA).
 He also studied in Paris at Studio 34 and Coté Cour.
 He has appeared in English, French and Spanish speaking roles.
Sir Philip Anthony Hopkins (born 31 December 1937) is a Welsh film, stage, and television actor.
 After graduating from the Royal Welsh College of Music & Drama in 1957, he trained at the Royal Academy of Dramatic Art in London, and was then spotted by Laurence Olivier who invited him to join the Royal National Theatre.
 In 1968, he got his break in film in "The Lion in Winter", playing Richard the Lionheart.
My Week with Marilyn is a 2011 British drama film directed by Simon Curtis and written by Adrian Hodges.
 It stars Michelle Williams, Kenneth Branagh, Eddie Redmayne, Dominic Cooper, Julia Ormond, Emma Watson and Judi Dench.
 Based on two books by Colin Clark, it depicts the making of the 1957 film "The Prince and the Showgirl", which starred Marilyn Monroe (Williams) and Laurence Olivier (Branagh).
 The film focuses on the week during the shooting of the 1957 film when Monroe was escorted around London by Colin (Redmayne), after her husband Arthur Miller (Dougray Scott) had returned to the United States.
Ellis Jones (born 15 November 1943) is a British director and actor.
 In recent years he has been involved in training and directing, for sixteen years as a resident director at London's Royal Academy of Dramatic Art (RADA), and subsequently as a guest director for other leading drama schools in London and abroad, including the Royal Central School and the Shanghai Theatre Academy, and as a consultant to the New York University Tisch School of the Arts.
 He became known for his role as the young apprentice Hal Adden, in the 1970s children's comedy series "Pardon My Genie".
 He went on to appear in many other television productions, such as "The Squirrels", "1914 All Out", "King Lear" and "Measure for Measure" Having worked extensively in recent years in theatre training, directing and producing, Ellis Jones recently made a cautious return to performing, as understudy to Kenneth Cranham in London's West End and on tour in Florian Zeller's award-winning play "The Father".
Tomahawk is a theatre company based in Oxford, South East England.
 Founded in 2005 by Alex Nicholls and Oliver Baird among others, experienced personnel work alongside young actors, directors and technicians, many of whom have gone on to train in London at the Royal Academy of Dramatic Art (RADA), London Academy of Music and Dramatic Art (LAMDA) and Mountview Academy of Theatre Arts.

Question: What actor who became president of the Royal Academy of Dramatic Art in London also starred in the movie My Week with Marilyn?
Answer: Kenneth Branagh