Question: Who is the actress who co-stared in the comedy series "Peter Kay's Car Share" with actor Peter Kay?

Context paragraphs:
Phoenix Nights: Peter Kay's Phoenix Nights is a British sitcom about The Phoenix Club, a working men's club in the northern English town of Farnworth, Greater Manchester.  The show was written by Neil Fitzmaurice, Peter Kay and Dave Spikey, produced by Goodnight Vienna Productions and Ovation Entertainments, and was broadcast on Channel 4 in the UK.  All the music was written by Toni Baker and Peter Kay.  Additional material was provided by Paddy McGuinness.  Two series have been produced, which were first transmitted in 2001 and 2002.

The League of Gentlemen's Apocalypse: The League of Gentlemen's Apocalypse is a feature film spin-off of the British television comedy series "The League of Gentlemen".  Starring Mark Gatiss, Steve Pemberton and Reece Shearsmith, the film was written by the cast with Jeremy Dyson, and directed by Steve Bendelack.  Also featuring in guest roles are Michael Sheen, Victoria Wood, David Warner, Alan Morrissey, Bruno Langley, Bernard Hill, Simon Pegg and Peter Kay.

Peter Kay's Comedy Shuffle: Peter Kay's Comedy Shuffle is a BBC series produced by Goodnight Vienna Productions featuring clips taken from various television appearances of comedian Peter Kay.  It is broadcast on BBC One.

The Winner's Song: "The Winner's Song" is a single by fictional character Geraldine McQueen from "Peter Kay's Britain's Got the Pop Factor... and Possibly a New Celebrity Jesus Christ Soapstar Superstar Strictly on Ice", a spoof talent contest/comedy by British comedian Peter Kay, who also plays Geraldine.  It was released in Europe on 13 October 2008.

That Peter Kay Thing: That Peter Kay Thing is a series of six spoof documentaries shown on Channel 4 in 2000.  It was written by Peter Kay, Dave Spikey, Neil Fitzmaurice and Gareth Hughes, and was directed by Andrew Gillman.  The series was narrated by Andrew Sachs.  Set in and around Bolton, each episode functions as a self-contained documentary following a different set of characters, many of them played by Kay.  The pilot episode, "The Services", was shown in 1998 as an episode of "Comedy Lab", a series which showcases pilots of experimental comedy shows.  Many of the characters went on to appear in the successful spin-off series "Phoenix Nights".

The Tour That Doesn't Tour Tour...Now On Tour: The Tour That Doesn't Tour Tour...Now On Tour was a comedy tour announced in November 2009 by Peter Kay.  Originally, Kay said he would be playing four dates at The Manchester Arena, which was later extended to 20 nights in April and May 2010, with a tour entitled "The Tour That Doesn't Tour Tour".  The reason Kay was restricting the tour to Manchester was so he could be close to his family.  During an interview with Jonathan Ross, Kay announced that due to high demand for tickets, he would now be extending his tour, renaming the tour to "The Tour That Doesn't Tour Tour...Now On Tour" to take place in November 2010 and April 2011.  The tour will visit Manchester, London, Dublin, Belfast, Cardiff, Glasgow, Sheffield, Birmingham, Newcastle, and Liverpool before returning to Manchester.

Geraldine: The Winner's Story: Geraldine: The Winner's Story is Peter Kay's sequel to "Britain's Got the Pop Factor... and Possibly a New Celebrity Jesus Christ Soapstar Superstar Strictly on Ice"; it aired on 19 December 2008.  To coincide with this and compete with the X-Factor winning song, Peter Kay released "Once Upon a Christmas Song" co-composed by Gary Barlow.

Peter Kay's Car Share: Peter Kay's Car Share is a British sitcom set around supermarket assistant manager John Redmond (Peter Kay) and promotions rep Kayleigh Kitson (Sian Gibson), and their participation in a company car share scheme.

Sian Gibson: Siân Gibson (born Siân Foulkes; 15 July 1976) is a Welsh actress and writer perhaps best known for her collaborations with Peter Kay, including starring in and co-writing the comedy series "Peter Kay's Car Share", for which she won the 2016 BAFTA TV Award for Best Scripted Comedy and the National Television Award for Best Comedy.

Uhaul Car Share: UhaulCarShare (formerly "UCarShare") is a for-profit carsharing service offered by U-Haul in nearly 40 cities in the United States.  Those with a Uhaul Car Share membership may have use of a car, billable by the hour or by the day.  However, use is generally limited to three days at a time.  Most often, Uhaul Car Share vehicles are operated in communities with colleges and/or universities nearby.  "The goal of [Uhaul] Car Share is to give people an alternative to owning second and third cars, and to increase the use of public transit."

Supporting paragraphs: Sian Gibson Peter Kay's Car Share
Answer: Sian Gibson