Duggie Brown (born Barry Dudley 7 August 1940 in Rotherham, West Riding of Yorkshire) is an English comedian and actor.
 He is the brother of actress and singer Lynne Perrie.
Mike Winters, born Michael Weinstein (15 November 1926 – 24 August 2013), was an English comedian, musician, businessman and writer who was the straight man of the comedy double act Mike & Bernie Winters with his younger brother, Bernie.
Murder in Successville is a British sitcom with improvisational elements created by Andy Brereton and Avril Spary.
 The series aired on BBC Three from 6 May 2015.
 "Murder in Successville" stars Tom Davis as DI Sleet who is partnered with a guest celebrity every episode to solve a murder.
 The cast of every episode includes impersonations of various celebrities who live in the fictional Successville.
 Celebrities are transposed into fictional versions that fit into the setting of Successville, such as Alan Carr who in Successville's universe is a mobster and brother to Jimmy Carr.
 Liam Hourican appears as Chief Gordon Ramsay in each episode, introducing the guest celebrity at the start and revealing whether they have picked the correct killer at each episode's conclusion.
Tom Davis is an actor, best known for his role as DI Sleet in BBC Three comedy "Murder in Successville".
James Anthony Patrick Carr (born 15 September 1972) is an English stand-up comedian, television host and actor, known for his signature laugh, deadpan delivery, dark humour, and heckler interaction.
 He is also a writer, actor, and presenter of radio and television.
 Carr moved to a career in comedy in 2000.
Sir George Edward Wade, CBE (20 September 1869 – 29 November 1954), known professionally as George Robey, was an English comedian, singer and actor in musical theatre, who became known as one of the greatest music hall performers of the late 19th and early 20th centuries.
 As a comedian, Robey mixed everyday situations and observations with comic absurdity.
 Apart from his music hall acts, he was a popular Christmas pantomime performer in the English provinces, where he excelled in the dame roles.
 He scored notable successes in musical revues during and after the First World War, particularly with the song "If You Were the Only Girl (In the World)", which he performed with Violet Loraine in the revue "The Bing Boys Are Here" (1916).
 One of his best-known original characters in his six-decade long career was the Prime Minister of Mirth.
Bernie Winters, born Bernie Weinstein (6 September 1930 – 4 May 1991), was an English comedian and the comic relief of the double act Mike and Bernie Winters with his older brother, Mike.
 Winters later performed solo, often with the aid of his St Bernard dog, Schnorbitz.
 Following his death, Winters bequeathed Schnorbitz to showman Richard De Vere.
Julian Peter McDonald Clary (born 25 May 1959) is an English comedian and novelist.
 Openly gay, Clary began appearing on television in the mid-1980s and became known for his deliberately stereotypical camp style.
 Since then he has also acted in films, television and stage productions, and was the winner of "Celebrity Big Brother 10" in 2012.
Nico Tatarowicz (born 23 April 1974) is a British actor and writer, known for The Armstrong and Miller Show (2007), Very Important People (2012), Crackanory (2013), Murder in Successville (2015-2017) .
Liam Hourican is an Irish actor, best known for his roles in BBC Three comedy "Murder in Successville".

Question: Who is the brother of an English comedian in Murder in Successville?
Answer: Alan Carr