Kenneth "Ken" Barlow is a fictional character from the British ITV soap opera, "Coronation Street", played by William Roache.
 Ken was created by Tony Warren as one of "Coronation Street's" original characters.
 He debuted in the soap's first episode on 9 December 1960.
 Having appeared continuously since the programme's inception, December 2010 marked Ken's 50th anniversary on-screen.
 At this time, Roache officially became the longest-serving actor in a televised soap opera.
 Roache was honoured at the 2010 Guinness World Records ceremony for the achievement, when he surpassed actor Don Hastings from the American soap opera "As the World Turns", who previously held this title.
 Roache stated in 2010 that he has no plans to leave the role and will remain in "Coronation Street" for as long as they will have him.
Royston "Roy" Cropper is a fictional character from the British ITV soap opera, "Coronation Street", played by David Neilson.
 He was introduced during the episode broadcast on 19 July 1995.
 Originally a secondary character, he was given a more prominent role in 1997, by the executive producer of "Coronation Street", Brian Park.
 Roy has been featured in numerous high-profile storylines, most notably marrying the first transgender character in a British soap opera, Hayley Patterson (Julie Hesmondhalgh).
Amy Katherine Barlow (also Patience Cropper and McDonald) is a fictional character from the British ITV soap opera, "Coronation Street", portrayed by Elle Mulvaney.
 She was born on screen during the episode broadcast on 9 February 2004.
 To date, the character has been portrayed by eight child actors; Holly Bowyer, Rebecca Pike, Louisa Morris, Rachel and Sarah Corker, Madison Hampson, Amber Chadwick and Mulvaney, making her the most recast character in Coronation Street.
 Although Amy's surname has stayed Barlow, Chadwick was credited as Amy McDonald for three episodes from 2009 to 2010.
Mary Elspeth Cole (also Taylor) is a fictional character from the British television ITV soap opera, "Coronation Street", portrayed by actress Patti Clare.
 The character first appeared on screen during the episode airing on 26 November 2008.
 Mary's storylines have included: trying to seduce Norris Cole (Malcolm Hebden) and kidnapping him when he refuses to give her attention, yet later becoming close friends; fighting for Dev Alahan's (Jimmi Harkishin) attention against Julie Carp (Katy Cavanagh) and Erica Holroyd (Claire King); her affair with Brendan Finch (Ted Robbins); and revealing that she gave birth to a son after being raped when she was fourteen years old.
Elsie Gregory (also Grimshaw, Tanner and Howard) is a fictional character from the British ITV soap opera, "Coronation Street", played by Pat Phoenix from the series inception in 1960 to 1973 and from 1976 until 1984.
 Elsie Tanner was one of the original core characters on "Coronation Street" and appeared in the very first episode.
 She is considered something of an icon in soap history and regarded as one of "Coronation Street's" greatest ever characters.
Edward "Eddie" Windass is a fictional character from the British ITV soap opera, "Coronation Street".
 Portrayed by Steve Huison, the character first appeared on-screen during the episode airing on 14 November 2008.
 On 5 December 2010, it was announced that Eddie is to leave Coronation Street in spring 2011 after being axed by producer Phil Collinson.
 Huison made his final appearance as Eddie on 25 April 2011.
 This was Huison's second role in the soap; he previously played criminal Andy Morgan in 2003.
Elizabeth "Betty" Williams (also Preston and Turpin) is a fictional character from the ITV soap opera, "Coronation Street", portrayed by former music hall star Betty Driver.
 Driver was cast as Betty in 1969, after first auditioning for the role of Hilda Ogden, which was given to Jean Alexander.
 The character arrived in "Coronation Street" to help her sister Maggie Cooke run the corner shop, and has since had a number of storylines which have seen her become twice widowed, and mother to an illegitimate son.
 Working as a barmaid in the soap's Rovers Return Inn, Betty created a signature dish, known as Betty's hotpot.
Sian Powers is a fictional character from the British ITV soap opera, "Coronation Street", portrayed by Sacha Parkinson.
 Sian was introduced as a love interest for Sophie Webster (Brooke Vincent).
 Sian joined the cast of "Coronation Street" alongside Ben Richardson (Lucien Laviscount) in January 2009 as Sophie's schoolmates.
 They soon form a new group of teenagers along with Ryan Connor (Ben Thompson).
 Sian and girlfriend Sophie are "Coronation Street's" first lesbian couple.
 It was announced on 29 May 2011 that Parkinson had quit her role, and she made her last on screen appearance on 30 December 2011.
Karl Munro is a fictional character from the British ITV soap opera, "Coronation Street", played by John Michie.
 Michie's casting was announced in April 2011.
 He signed an initial one-year contract and began filming his scenes in May.
 Upon joining the cast, Michie was told that producers would initially "bed [him] in", before increasing his involvement in the show in 2012.
 Michie is from Scotland, but because "Coronation Street" is set in Manchester, he uses a Mancunian accent for the role.
 Karl was introduced along with his girlfriend, Stella Price (Michelle Collins) and her daughter, Eva (Catherine Tyldesley).
 Karl made his first appearance in the episode broadcast on 17 June 2011.
 On 30 April 2013, it was announced that Michie would be leaving "Coronation Street".
 Karl departed during the episode broadcast on 13 September 2013.
Patti Clare (born 3 March 1976) is an English actress, known for playing the character of Mary Taylor in the ITV soap opera "Coronation Street" since 2008.
 She is a three-time winner of the British Soap Award for Best Comedy Performance (2011, 2013, 2016).

Question: Patti Clare portrayed which fictional character from the British television ITV soap opera, "Coronation Street"?
Answer: Mary Taylor