Question: What ethnicity was the actor that played Reg Cattermole in the movie rendition of J. K. Rowling's seventh novel of the Harry Potter series?

full_context: Document 1: Stephen Nicholas (actor): Stephen Nicholas (born 23 August 1978) also known as Stephen Charles Nicholas is an actor and presenter from Doncaster, South Yorkshire, England. Stephen currently lives in Sheffield, his first role was on Sky One's Dream Team, where he played Scott Ward. From there, he filmed the first in the trilogy Goal! (In which he played a Newcastle United Reserves player). Following this, he moved to Los Angeles, where he played Smith in the feature film Futbaal: The Price of Dreams. Stephen then returned to the UK to make a Bollywood film called Dhana Dhana Goal with John Abraham. Stephen then experienced his first opportunity in reality TV with the show Premier League All Stars for Sky One, as well as playing a footballer, he was on-hand to present celebrity gossip and pitch side reports. He then appeared in Celebrity Most Haunted and Date the Enemy. From there he then went on to star in Goal 3 where he not only acted in the film he also became the football choreographer and choreographed all the football scenes in the film. Nicholas then starred in the film Damned United where he played Welsh international Alan Durban, the film was filmed in Chesterfield and Leeds and was directed by Oscar winner Tom Hooper and also starred Oscar nominated Michael Sheen. Stephens next production was the feature film called 'No Way Back Now'about the notorious Manchester district of Moss Side, where Stephen played the lead actor Stuart Gavin,The feature is roughly based on the notorious Gooch gang that terrorised Manchester throughout the years. The next move for Stephen was pantomime where he was part of the production Aladdin over the Christmas period of 2015 in Doncaster playing Abanaza the main villain which he did until January 7, 2016!. He has recently been cast in the up-and-coming Feature Film 'Whiteblade' where he will play Thurstan the head Warlord Whiteblade is currently in production and Stephen is shooting his scenes in August 2016. In September 2016 Stephen will be presenting the Sky TV show 'Britz go Bollywood' the show consists of a group of Celebrities being dressed by The best Indian designers, Stephen is the main presenter of the show which will be screened live September 2, 2016.
Document 2: Harry Potter and the Deathly Hallows – Part 2: Harry Potter and the Deathly Hallows – Part 2 is a 2011 British-American fantasy film directed by David Yates and distributed by Warner Bros. Pictures. It is the second of two cinematic parts based on the novel of the same name by J. K. Rowling. The film, which is the eighth and final instalment in the "Harry Potter" film series, was written by Steve Kloves and produced by David Heyman, David Barron, and Rowling. It is the sequel to "Harry Potter and the Deathly Hallows – Part 1". The story continues to follow Harry Potter's quest to find and destroy Lord Voldemort's Horcruxes in order to stop him once and for all.
Document 3: Harry Potter and the Deathly Hallows: Harry Potter and the Deathly Hallows is the seventh and final novel of the "Harry Potter" series, written by British author J. K. Rowling. The book was released on 21 July 2007, ten years after publication of "Harry Potter and the Philosopher's Stone" (1997), by Bloomsbury Publishing in the United Kingdom, in the United States by Scholastic, and in Canada by Raincoast Books, ending the series that began in 1997 with the publication of "Harry Potter and the Philosopher's Stone". The novel chronicles the events directly following "Harry Potter and the Half-Blood Prince" (2005), and the final confrontation between the wizards Harry Potter and Lord Voldemort, as well as revealing the previously concealed back story of several main characters. The title of the book refers to three mythical objects featured in the story, collectively known as the "Deathly Hallows"—an unbeatable wand, a stone to bring the dead to life, and a cloak of invisibility.
Document 4: Stefan Pejic: Stefan Pejic (born 5 June 1988) is a Welsh actor, comedian, singer,entertainer born in Neath and raised in Swansea, Wales. He is a former Butlins Redcoat.
Document 5: List of Gavin &amp; Stacey characters: "Gavin & Stacey" is an award winning British television comedy series, following the lives of the title characters Gavin (Mathew Horne) and Stacey (Joanna Page), who, before marrying, live on opposite sides of the country, Gavin in Billericay, Essex, and Stacey in Barry Town, Vale of Glamorgan. During the first two series Gavin lives with his parents Mick (Larry Lamb) and Pam (Alison Steadman) but in the third series he has moved, with Stacey, to Barry and lives with Stacey's mum. He has a best friend Neil "Smithy" Smith (James Corden). For most of the episodes Stacey lives in Barry with her mum Gwen (Melanie Walters), with an extended family of Uncle Bryn (Rob Brydon) across the street, and best friend Vanessa Shanessa "Nessa" Jenkins (Ruth Jones), but for a short while during series two she lived with Gavin, Pam and Mick in Essex.
Document 6: Robbie Coltrane: Robbie Coltrane, OBE (born Anthony Robert McMillan; 30 March 1950) is a Scottish actor and author. He is known for his roles as Rubeus Hagrid in the "Harry Potter" films, as Valentin Dmitrovich Zukovsky in the James Bond films "GoldenEye" and "The World Is Not Enough," and as Dr. Eddie "Fitz" Fitzgerald in the British TV series "Cracker" during the 1990s.
Document 7: Harry Potter and the Deathly Hallows – Part 1: Harry Potter and the Deathly Hallows – Part 1 is a 2010 British-American fantasy film directed by David Yates and distributed by Warner Bros. Pictures. It is the first of two cinematic parts based on the novel of the same name by J. K. Rowling and features an ensemble cast. The film, which is the seventh and penultimate installment in the "Harry Potter" film series, was written by Steve Kloves and produced by David Heyman, David Barron, and Rowling.
Document 8: The Tales of Beedle the Bard: The Tales of Beedle the Bard is a book of children's stories by British author J. K. Rowling. There is a storybook of the same name mentioned in "Harry Potter and the Deathly Hallows", the last book of the "Harry Potter" series.
Document 9: Harry Potter and the Half-Blood Prince: Harry Potter and the Half-Blood Prince is the sixth and penultimate novel in the "Harry Potter" series, written by British author J. K. Rowling. Set during protagonist Harry Potter's sixth year at Hogwarts, the novel explores the past of Harry's nemesis, Lord Voldemort, and Harry's preparations for the final battle against Voldemort alongside his headmaster and mentor Albus Dumbledore.
Document 10: Rupert Grint: Rupert Alexander Lloyd Grint (born 24 August 1988) is an English actor and producer. He rose to prominence playing Ron Weasley, one of the three main characters in the "Harry Potter" film series. Grint was cast as Ron at the age of 11, having previously acted only in school plays and at his local theatre group. From 2001 to 2011, he starred in all eight "Harry Potter" films alongside Daniel Radcliffe playing as Harry Potter and Emma Watson playing as Hermione Granger.
Document 11: Steffan Rhodri: Steffan Rhodri (born 1 March 1967) is a Welsh film actor, best known for portraying Dave Coaches on "Gavin & Stacey" and as Reg Cattermole in "Harry Potter and the Deathly Hallows" part I.
Document 12: Gareth David-Lloyd: Gareth David Lloyd (born 28 March 1981), known professionally as Gareth David-Lloyd, is a Welsh actor best known for his role as Ianto Jones in the British science fiction series "Torchwood."
Document 13: Harry Potter and the Philosopher's Stone: Harry Potter and the Philosopher's Stone is the first novel in the "Harry Potter" series and J. K. Rowling's debut novel, first published in 1997 by Bloomsbury. It was published in the United States as Harry Potter and the Sorcerer's Stone by Scholastic Corporation in 1998. The plot follows Harry Potter, a young wizard who discovers his magical heritage as he makes close friends and a few enemies in his first year at the Hogwarts School of Witchcraft and Wizardry. With the help of his friends, Harry faces an attempted comeback by the dark wizard Lord Voldemort, who killed Harry's parents, but failed to kill Harry when he was just 15 months old.
Document 14: Harry Potter and the Philosopher's Stone: Harry Potter and the Philosopher's Stone is the first novel in the "Harry Potter" series and J. K. Rowling's debut novel, first published in 1997 by Bloomsbury. It was published in the United States as Harry Potter and the Sorcerer's Stone by Scholastic Corporation in 1998. The plot follows Harry Potter, a young wizard who discovers his magical heritage as he makes close friends and a few enemies in his first year at the Hogwarts School of Witchcraft and Wizardry. With the help of his friends, Harry faces an attempted comeback by the dark wizard Lord Voldemort, who killed Harry's parents, but failed to kill Harry when he was just 15 months old.
Document 15: Steven Meo: Steven James Meo (born 1977) is a Welsh television actor. He is known for playing Dwayne Hoffman in BBC Wales sitcom "High Hopes" (2002-8), Grant in the BBC Three show "Grownups" (2006-9), and Owen in the BBC Wales drama series "Belonging" (1999-2009). He is also well known for playing the role of Owain Hughes in the third series of "Gavin & Stacey". He appeared as Josh in the "Torchwood" episode "Random Shoes" (2006), and participated in "The Big Welsh Challenge" on BBC Wales. He is currently playing Thénardier in Les Miserables in London's west end.
ground_truth: Welsh