Question: What male actor starred in The Messenger?

full_context: Document 1: MSG: The Messenger: MSG: The Messenger (also known as MSG: The Messenger of God) is a 2015 Indian faith-based film written by and starring religious leader Gurmeet Ram Rahim Singh, who is also credited as co-director, co-cinematographer, co-editor, songwriter, and stuntman, in his film debut. The film was released worldwide on February 13, 2015. It follows a spiritual leader, played by Singh and largely based on himself, on a quest to eradicate drugs and gender-related issues.
Document 2: The Messenger (2015 documentary film): The Messenger is a 2015 documentary film written and directed by Su Rynard, focusing on the protection of multiple types of songbirds throughout the world. The film's world premiere took place at the Hot Docs Canadian International Documentary Festival on 2015-04-28.
Document 3: Paul Brannigan: Paul Brannigan (born 14 September 1986) is a Scottish actor best known for his roles as Gareth O'Connor in Scottish soap opera "River City" and as Robbie in the film "The Angels' Share" (2012). Brannigan also appeared in the 2013 movie "Under the Skin".
Document 4: Niall Tóibín: Niall Tóibín (born 21 November 1929) is an Irish comedian and actor. Born in Cork into an Irish speaking family, Tóibín grew up on the north-side of the city in Bishop's Field. He has appeared in "Ryan's Daughter", "Bracken", "The Ballroom of Romance", "The Irish R.M.", "Caught in a Free State", "Ballykissangel", "Far and Away", and "Veronica Guerin", and has played Brendan Behan too. He was awarded honorary lifetime membership of the Irish Film and Television Academy (IFTA) in 2011.
Document 5: Colin Morgan: Colin Morgan (born 1 January, 1986) is a British/Irish film, television, theatre and radio actor best known for playing the title character in the BBC fantasy series "Merlin", the lead in "The Living and the Dead", and main roles in "Humans" and "The Fall"; his stage role as Ariel in "The Tempest"; and film roles in "Testament of Youth", "Legend" and "".
Document 6: Stephen Rea: Stephen Rea ( ; born 31 October 1946) is an Irish film and stage actor. Rea has appeared in films such as "V for Vendetta", "Michael Collins", "Interview with the Vampire" and "Breakfast on Pluto". Rea was nominated for an Academy Award for his lead performance as Fergus in the 1992 film "The Crying Game". He has during later years had important roles in the Hugo Blick TV series "The Shadow Line" and "The Honourable Woman", for which he won a BAFTA Award.
Document 7: The Messenger: The Story of Joan of Arc: The Messenger: The Story of Joan of Arc (French: Jeanne d'Arc ) is a 1999 French epic historical drama film directed by Luc Besson. The film stars Milla Jovovich, John Malkovich, Faye Dunaway and Dustin Hoffman. The screenplay was written by Besson and Andrew Birkin, and the original music score was composed by Éric Serra.
Document 8: The Messenger (2015 horror film): The Messenger is a 2015 British supernatural mystery horror film directed by David Blair, written by Andrew Kirk and starring Robert Sheehan and Lily Cole.
Document 9: Sean Mahon: Sean Mahon is an Irish stage and screen actor. He is known for playing Nicky Giblin in the Broadway production of "The Seafarer", Richard Hannay in the Broadway production of "The 39 Steps" and Michael Hess (the lost son) in the award winning feature film, "Philomena". In 2014 he was nominated for a best lead actor award for his portrayal of maverick cop Brian McGonigle in the Irish Drama Red Rock. After much success in Ireland, Red Rock now plays on the BBC in the UK and on Amazon Prime in the US.
Document 10: David Nunn (actor): David Nunn (4 August 1962 – 26 April 2012) was a British actor perhaps best known for playing the Messenger in "The Black Adder" in 1983.
Document 11: Iain Robertson: Iain Robertson (born 27 May 1981) is a BAFTA award winning Scottish actor. He portrayed Lex in cult Glasgow gang film, "Small Faces", though Robertson is also known for his work in the long-running children's drama, "Grange Hill" and "The Debt Collector", also starring Billy Connolly.
Document 12: MSG-2 The Messenger: MSG-2 The Messenger is a 2015 Indian faith-based action film written by and starring religious leader Gurmeet Ram Rahim Singh, who is also credited as co-director, co-editor, and songwriter. It is a sequel to "", released earlier in the same year, with Singh reprising his role as Guruji, a spiritual leader on a quest to save an Adivasi tribe. It was released worldwide on September 18, 2015, followed by the Tamil and Telugu versions on October 1; however, a controversy surrounding the film's allegedly insultive portrayal of Adivasis led to several states banning it.
Document 13: Michael Fassbender: Michael Fassbender (born 2 April 1977) is an Irish actor. His feature film debut was in the fantasy war epic "300" (2007) as a Spartan warrior; his earlier roles included various stage productions, as well as starring roles on television such as in the HBO miniseries "Band of Brothers" (2001) and the Sky One fantasy drama "Hex" (2004–05). He first came to prominence for his role as IRA activist Bobby Sands in "Hunger" (2008), for which he won a British Independent Film Award. Subsequent roles include in the independent film "Fish Tank" (2009), as a Royal Marines lieutenant in "Inglourious Basterds" (2009), as Edward Rochester in the 2011 film adaptation of "Jane Eyre", as Carl Jung in "A Dangerous Method" (2011), as the sentient android David 8 in "Prometheus" (2012) and its sequel, "" (2017), and in the musical comedy-drama "Frank" (2014) as an eccentric musician loosely inspired by Frank Sidebottom.
Document 14: The Atheist (play): The Atheist is written by Irish born playwright, Ronan Noone. His previous plays include "The Lepers of Baile Baiste" (Critics Pick, Boston Globe) and "The Blowin of Baile Gall" which had its Off-Broadway debut, produced by Gabriel Byrne, at the Irish arts Center in New York in 2005. "The Blowin of Baile Gall" was nominated by the American Theatre Critics Association for the Steinberg New Play Award and won the Elliot Norton Award for Outstanding New Script. In 2003, Noone was chosen by Boston Magazine as the Best Young Playwright of the Year. The subject of "The Atheist" is not God, but the religion of tabloid journalism.
Document 15: Robert Sheehan: Robert Michael Sheehan (Irish: "Roibeárd Mícheál Ó Siodhacháin" ; born 7 January 1988) is an Irish actor. He is best known for television roles such as Nathan Young in "Misfits" and Darren in "Love/Hate", as well as the 2009 film "Cherrybomb" alongside Rupert Grint. He also co-starred in the film "Killing Bono" as Ivan McCormick. In late 2011 he starred in John Crowley's production of J. M. Synge's comic play "The Playboy of the Western World" at the Old Vic Theatre in London.
ground_truth: Robert Sheehan