Question: Who were the creators of the long-running British soap opera in which Alison Pargeter plays the role of Sarah Cairns?

full_context: Document 1: Only Fools and Horses: Only Fools and Horses is a British television sitcom created and written by John Sullivan. Seven series were originally broadcast on BBC One in the United Kingdom from 1981 to 1991, with sixteen sporadic Christmas specials aired until the end of the show in 2003. Episodes are regularly repeated on UKTV comedy channel Gold, Yesterday and occasionally repeated on BBC One.
Document 2: Eldorado (TV series): Eldorado was a British soap opera created by Tony Holland from an original idea by James Todesco, John Dark and Verity Lambert that ran for only one year, from 6 July 1992 to 9 July 1993. Set in the fictional town of Los Barcos on the Costa del Sol in Spain and following the lives of British and European expatriates, the BBC hoped it would be as successful as "EastEnders" and replicate some of the sunshine and glamour of imported Australian soaps such as "Home and Away" and "Neighbours". A co-production between the BBC and independent production company Cinema Verity and J.Dark y J.Todesco, "Eldorado" aired three times a week in a high-profile evening slot on the mainstream channel BBC1, filling the slot vacated by Terry Wogan's chat show "Wogan", on Mondays, Wednesdays and Fridays at 7.00pm.
Document 3: Dot Cotton: Dorothy "Dot" Branning (also Cotton) is a fictional character from the BBC soap opera, "EastEnders", played by June Brown since 1985. Dot first appeared in "EastEnders" in July 1985 as the mother of criminal Nick Cotton (John Altman). The character has worked as a launderette assistant for most of that time along with original character Pauline Fowler (Wendy Richard). Dot moved away with her son and his family in 1993. In reality, Brown left the show in 1993, unhappy with the axing of her co star Peter Dean, who played Pete Beale from the shows first episode to early 1993. Brown returned to the role in 1997, and Dot was shown moving back to Albert Square, and has continued since that time. On 28 April 2017, Dot overtook Pat Butcher (Pam St. Clement) as the second longest-serving character in "EastEnders", surpassed only by original character Ian Beale (Adam Woodyatt). In a special episode entitled "EastEnders: Dot's Story" (2003) a young Dot was played by Tallulah Pitt-Brown in flashbacks. In April 2012, Brown took a six-month break from the show to write her memoirs. Dot temporarily departed on 18 May 2012. She returned on 14 January 2013. In February 2015, Dot began appearing less frequently due to Brown gradually losing her eyesight; this aspect of her life was later written into her character the following year. In January 2016, it was announced that Brown had renewed her contract with the BBC until March 2017. Brown is now the oldest soap opera actress in Britain. In January 2017 it was reported that the BBC were offering Brown £300,000 for a one-year contract.
Document 4: Alison Pargeter: Alison Pargeter (born 31 May 1972) is an English actress who played the roles of stalker Sarah Cairns in the BBC soap opera "EastEnders", also Mary Slessor in an 11-part television series of" Mary Slessor", and the Nag's Head barmaid called Val in the BBC "Only Fools and Horses" prequel "Rock & Chips".
Document 5: The Road to Coronation Street: "The Road to Coronation Street" was written by Daran Little, a long-time archivist on "Coronation Street" who became a scriptwriter. At the time, however, Little was a scriptwriter for "Coronation Street"' s rival, "EastEnders", broadcast on BBC One. Though "Coronation Street" is, and always has been, broadcast on ITV, a competing network, the idea of documenting the show on the anniversary of its half century running was picked up by its natural rival, the BBC. It has, however, been repeated several times on ITV3 and, on the occasion of Tony Warren's death, ITV.
Document 6: Hollyoaks: Hollyoaks is a British soap opera, first broadcast on Channel 4 on 23 October 1995. It was originally devised by Phil Redmond, who had previously conceived the Channel 4 soap "Brookside". The programme is set in a fictional suburb of Chester called Hollyoaks, and features a large cast of characters primarily aged between 16 and 35. It is mostly filmed and produced in Childwall, Liverpool, although nearby locations are sometimes used. Beginning with a cast of just seven major characters in 1995, the serial now has approximately 50 main cast members. "Hollyoaks" has a high cast turnover in comparison with other British soaps; as of May 2014, just thirty-seven characters have spent five years or longer on the show. The programme has won 28 British Soap Awards, 11 Inside Soap Awards, one "TRIC Award" and one National Television Award; at the 2014 British Soap Awards, "Hollyoaks" won Best British Soap for the first time, breaking the 15-year draw between rival soaps "EastEnders" and "Coronation Street". It is also popular around the world. The longest-serving cast member is Nick Pickard, who has played Tony Hutchinson since the first episode in 1995; all the other original characters left before 2000.
Document 7: EastEnders: EastEnders is a long-running British soap opera created by Julia Smith and Tony Holland which has been broadcast on BBC One since 1985. Set in the East End of London in the fictional Borough of Walford, the programme follows the stories of local residents and their families as they go about their daily lives in Albert Square. The series was initially screened as two 30-minute episodes per week; however, since 2001, episodes have been broadcast every day apart from Wednesdays and weekends. Same-day repeats of the series were previously shown on BBC Three and omnibus editions were shown on BBC Two, however, since 2016 these have been broadcast on UK-based TV channel W.
Document 8: Coronation Street: Coronation Street (informally known as Corrie) is a British soap opera created by Granada Television and shown on ITV since 9 December 1960. The programme centres on Coronation Street in Weatherfield, a fictional town based on inner-city Salford, its terraced houses, café, corner shop, newsagents, building yard, taxicab office, salon, restaurant, textile factory and the Rovers Return pub. In the show's fictional history, the street was built in 1902 and named in honour of the coronation of King Edward VII.
Document 9: Peggy Mitchell: Margaret Ann "Peggy" Mitchell (also Butcher) is a fictional character from the BBC soap opera "EastEnders". Peggy was initially played by Jo Warne when she first appeared in the episode broadcast on 30 April 1991, featuring in 10 episodes. Peggy was reintroduced in 1994, recast to Barbara Windsor, who made her first appearance in the episode broadcast on 7 November 1994. Peggy became a regular character, and Windsor played the role until she was forced to take a long break due to poor health and departed on 23 May 2003. She returned for two episodes broadcast on 16 and 17 September 2004, before rejoining as a regular character on 8 September 2005. Windsor announced in October 2009 that she would be leaving the show and departed on 10 September 2010. Windsor returned to the show for guest appearances on 20 September 2013, 25 September 2014, 17 February 2015 (as part of the show's 30th anniversary celebrations; see EastEnders Live Week) and 15 January 2016. She then appeared in six episodes between 9 and 17 May 2016 and the character was killed off. Her voice is last heard in the following episode, on 19 May 2016. Peggy's funeral aired on 4 July 2016.
Document 10: Casualty (TV series): Casualty, stylised as CASUALY, is a British medical drama series that airs weekly on BBC One (sometimes with a short break in the summer between series, but not always). It is the longest-running emergency medical drama television series in the world, and the most enduring medical drama shown on prime time television in the world. Created by Jeremy Brock and Paul Unwin, it was first broadcast in the United Kingdom on BBC One on 6 September 1986. The original producer was Geraint Morris.
Document 11: Caroline Paterson: Caroline Paterson (born 28 November 1965 in Kirkcaldy, Scotland) is a Scottish actress who has appeared in many Scottish television shows such as one-off STV drama, "The Steamie" and the BBC's "Rab C. Nesbitt". However, she is most recognized for her role in "EastEnders" as Mark Fowler's wife, Ruth. She also appeared as Patricia Cullen in BBC Scotland soap "River City".In 2005 she had a one episode appearance in the BAFTA award-winning BBC series Spooks as Jessica Mortimer. In 2008, Paterson appeared in "Coronation Street" as police detective D.C. Weller after David Platt pushed his mother, Gail down the stairs of their home, and again in December 2008 to investigate allegations against Tony Gordon. She had a cameo role in the sixth season of "Skins" as the mother of Franky. She also appeared in "River City", as Sandra Devlin.
Document 12: Pat Butcher: Patricia Louise "Pat" Butcher (also credited with the names Wicks and Evans), also occasionally referred to in the British media as Fat Pat, is a fictional character from the BBC soap opera "EastEnders". She was played by Pam St. Clement from 12 June 1986, just over a year after the show first aired, until her departure on 1 January 2012. Pat was also portrayed by Emma Cooke in a soap 'bubble' "Pat and Mo: Ashes to Ashes", delving into her past with sister-in-law Mo Harris (Laila Morse), which aired in 2004. The character died on 1 January 2012, shortly after being diagnosed with pancreatic cancer. Her funeral was on 13 January 2012. Pat was one of the longest serving characters on the show, being on it for twenty-five years and six months. She returned along with other women from Ian Beale's (Adam Woodyatt) past in a concussion-related dream sequence for a Children in Need special on 14 November 2014. She also made a return as a hallucination for Peggy Mitchell's (Barbara Windsor) exit on 17 May 2016.
Document 13: Rock &amp; Chips: Rock & Chips is a British television comedy-drama and a prequel to the sitcom "Only Fools and Horses". Set in 1960s Peckham, it focuses primarily on the lives of Del Trotter, Freddie Robdal and Joan and Reg Trotter. Nicholas Lyndhurst, who played Rodney in "Only Fools and Horses", plays Robdal alongside James Buckley (Del Boy), Kellie Bright (Joan), Shaun Dingwall (Reg) and Phil Daniels (Grandad). The Shazam Productions and BBC co-production was written by "Only Fools and Horses" creator John Sullivan, directed by Dewi Humphreys and produced by Gareth Gwenlan.
Document 14: Lucy Pargeter: Lucy Kate Pargeter (born 1 March 1977) is an English actress. She is best known for playing Helen Raven in "Crossroads" and Chas Dingle in "Emmerdale". In 2013, she landed third place in the 13th series of I'm a Celebrity...Get Me Out of Here!.
Document 15: Waterloo Road (TV series): Waterloo Road was a British television drama series set in a comprehensive school of the same name, broadcast on BBC One and later also on BBC Three. The school was set in Rochdale, England from series one until the end of series seven, and from the beginning of series eight until the end of the show in series ten, the school was set in Greenock, Scotland. In 2014, it was confirmed that the 10th series of "Waterloo Road" would be the last. The first episode was broadcast on BBC One on 9 March 2006 and the final episode on BBC Three on 9 March 2015. "Waterloo Road" ran for 10 series, 200 episodes and exactly 9 years. Reruns air on CBS Drama in the UK. As of the beginning of August 2017, full episodes of Series One and Series Two have been uploaded to the Waterloo Road YouTube channel.
ground_truth: Julia Smith and Tony Holland