Question: Which English actor co-wrote and also played in The Dictator?

Context articles: James Byng
Stephen Fry bibliography and filmography
Peter Martin (actor)
Pascal Langdale
Stephen North
Dave Dutton
James Roache
The Dictator (2012 film)
Sacha Baron Cohen
Tom Hollander

James Byng (born 1985) is an English actor and vocalist.
 Acting since the age of ten, James made his West End debut in the title role of "Oliver!
" at the London Palladium.
 He played the same role in the national tour of "Oliver!"
 and at the Royal Charity Gala "Hey!
 Mr. Producer", honoring theatrical producer Cameron Mackintosh at the Lyceum Theatre on 8 June 1998.
 Byng also played Gavroche in "Les Misérables" at the Palace Theatre.
 From 2007 to 2008 he was seen on stage at the Theatre Royal, Drury Lane, first playing various ensemble roles and then taking over the part of Frodo Baggins in Matthew Warchus' theatrical adaption of "The Lord of the Rings".
 In 2008-09 Byng appeared in the role of John Darling in the musical "Peter Pan" at the West Yorkshire Playhouse in Leeds.
 He just finished a tour with the West Yorkshire Playhouse production of "The History Boys" by Alan Bennet, in which he played Posner.
 From September until November 2010 Byng was on tour with a production of "Carrie's War" in the role of Nick Willow.
 After performing in "Secret Cinema - Back to the Future" he can currently be seen in "The Grimm Tales" at The Bargehouse at Oxo Tower Wharf.
Stephen Fry is an English actor, comedian, author and television presenter.
 With Hugh Laurie, as the comedy double act Fry and Laurie, he co-wrote and co-starred in "A Bit of Fry and Laurie", and the duo also played the title roles in "Jeeves and Wooster".
 Fry played the lead in the film "Wilde", was Melchett in the "Blackadder" television series and is the host of celebrity comedy trivia show, "QI".
 He has contributed columns and articles for newspapers and magazines, and has written four novels and three autobiographies, "Moab Is My Washpot", "", and "More Fool Me: A Memoir".
Peter Martin is an English actor (born 1934, Accrington, Lancashire) who was known in the 1980s for his TV ads for Jewsons Hardware.
 He played the fish shop man in "First of the Summer Wine".
 He also played 'Charlie the moonlighting gravedigger' in the "Beiderbecke Tapes".
 He was in "The Royle Family" as Joe Carroll, and played the part of Len Reynolds in ITV's "Emmerdale" from 2001 until the character's death on 17 May 2007 in Emmerdale Village's 500th anniversary episode.
 He also starred in the film "Brassed Off" and
Pascal Langlois (born 5 September 1973), better known as Pascal Langdale, is an English actor and voice actor.
 He has played supporting roles in a number of television dramas since 1999.
 Langdale also lent his voice and likeness to the critically acclaimed video game "Heavy Rain", in which he played Ethan Mars.
 He studied at the Royal Academy of Dramatic Art for 3 years.
 Langdale also ran a company that assisted in facial and motion-capture for video games.
 Pascal co-wrote and performed in "Faster Than Night", a "Live-animated interactive drama" chosen to be part of Toronto's Harbourfront HATCH 2014 festival.
Stephen "Steve" North (born 1965) is an English actor.
 He had his first major role playing Firefighter Colin Parrish in the ITV drama London's Burning between 1990 and 1993.
 He has since appeared in numerous shows on British television, including "Doctor Who Christmas Special 2010", "EastEnders", "The Bill", "The Day Britain Stopped", "Murphy's Law", "Holby City", "Midsomer Murders", "Doctors", "Is Harry on the Boat?
", "" and "Casualty".
 North also played one of the two lead roles in the award winning stage play "Meeting Joe Strummer" along with "Emmerdale" actor Nick Miles.
 He was the solo performer in the original stage adaptation of Nick Hornby's "Fever Pitch", which ran at The Arts Theatre London in 1995.
 He played the role of Ted Narracott in War Horse (play) at the New London Theatre from May 2013 to March 2014 and also in the National Theatre Live broadcast on 27 February 2014 and subsequent Encore screenings.
Dave Dutton (born 1947 in Atherton, Lancashire) is an English actor.
 He first came to public recognition when he played the part of Oswald, the eccentric cafe owner in Granada television's situation comedy, "Watching".
 He has played roles in many different television series including "Heartbeat" and "The Royal".
 He has also played eleven different parts in the soap opera, "Coronation Street" as well as five in Emmerdale.
William James Roache (born 29 December 1985) is an English actor who is perhaps best known for his roles in connection with his father William Roache.
 In "Coronation Street" he played James, the long-lost grandson of Ken Barlow (played by his father).
 He also played the role of his own father William as a young man in the BBC drama "The Road to Coronation Street".
The Dictator is a 2012 British-American political satire black comedy film co-written by and starring Sacha Baron Cohen as his fourth feature film in a leading role.
 The film is directed by Larry Charles, who previously directed Baron Cohen's mockumentaries "Borat" and "Brüno".
 Baron Cohen, in the role of Admiral General Aladeen, the dictator of the fictional Republic of Wadiya visiting the United States, stars alongside Anna Faris, Ben Kingsley, Jason Mantzoukas, and an uncredited appearance by John C. Reilly.
Sacha Noam Baron Cohen (born 13 October 1971) is an English actor, comedian, screenwriter, and producer.
 Baron Cohen is most widely known for creating and portraying four fictional characters: Ali G, Borat Sagdiyev, Brüno Gehard, and Admiral General Aladeen.
 Like his idol Peter Sellers, he uses a variety of accents and guises for his characters.
Thomas Anthony Hollander (born 25 August 1967) is an English actor.
 He began his career in theatre, winning the Ian Charleson Award in 1992 for his performance as Witwoud in "The Way of the World" at the Lyric Hammersmith Theatre.
 He is known for his roles in comedic films such as "Pirates of the Caribbean" and "In the Loop" and drama films such as "Enigma", "Pride & Prejudice", "Gosford Park", and "Hanna".
 He played the lead role in the sitcom "Rev.", which won the British Academy Television Award for best sitcom in 2011.
 He also played the lead in the ITV's "Doctor Thorne" and won the BAFTA Television Award for Best Supporting Actor for his role as Major Lance "Corky" Corkoran in the BBC series "The Night Manager".