Mark Robert Speight, known professionally as Mark Stanley, is an English actor. He is best known for his roles in Game of Thrones and Dickensian, and as Rob Hepworth in the third series of BBC drama Happy Valley.
Early life and education Mark Robert Speight was born in Leeds. He attended Allerton High School and Prince Henry's Grammar School, Otley, where he began acting. He graduated from the Guildhall School of Music and Drama in 2010.
Filmography +Key Denotes works that have not yet been released Film Year Title Role2013How I Live NowChasing Man 2014Mr. TurnerClarkson StanfieldKajakiTug2015Star Wars: The Force AwakensKnight of Ren2016Our Kind of TraitorOllie 2017EuphoriaBrianDark RiverJoe Bell 2019HellboyArthurRunFinnie2020Sulphur and WhiteDavid TaitSmall Axe: "Red, White and Blue"Ed Harrigan 2023The SettlersAlexander MacLennanMy Mother's WeddingCharlie
Television Year Title Role Notes2011–2014Game of ThronesGrenn22 episodes2015–2016DickensianBill Sikes14 episodes 2017BrokenPC Andrew Powell5 episodesLove, Lies and RecordsJames6 episodesLittle WomenProfessor Bhaer1 episode2018The Little Drummer GirlArthur A. Halloran1 episode2019–2020Criminal: UKDC Hugo Duffy4 episodes2019SanditonLord Babington8 episodesElizabeth Is MissingFrank JeffordTV film2020White House FarmColin CaffellTV mini-series2020HonourDS Andy CraigTV mini-series; 2 episodes2021 Anne Boleyn Henry VIII Mini-series2021The BayWarren PryceSeries 32022–2024 Trigger PointDI Thom Youngblood12 episodes2022The Thief, His Wife and the CanoeMark DarwinMini-series; 4 episodes2023Happy ValleyRob HepworthSeries 3; 6 episodes2023The ReckoningDan DaviesMini-series; 4 episodes2025Adolescence Paul Barlow Mini-series; "Episode 1"2025A Cruel Love: The Ruth Ellis StoryDesmond CussenHistorical drama2026Under Salt MarshDanny Mini series2026 The Witness DS Ivan AgnewUpcoming series2026 Secret Service (2026 TV series) Ryan Walker
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