Question: What BBC Three writer and Sharon Horgan collaborator worked at the White Bear theatre?

Context paragraphs:
Freaky Eaters: Freaky Eaters is an observational British documentary series produced by independent television production company "betty" for BBC Three from 2007 to 2009.  Series 1 was narrated by the actress Jill Halfpenny and series 2 by Sharon Horgan.  In Australia it is shown on ABC2 and titled "Eataholics".

White Bear Lake Area High School: North Campus, the previous White Bear High School, is located in the north side of White Bear Lake, north west of downtown White Bear Lake, and was built in 1964.  The school houses students grades 9-10.  The campus features some unique architectural design elements, including circular hallways.

White Bear Township, Ramsey County, Minnesota: White Bear Township is an urban township in Ramsey County, Minnesota, United States.  The population was 10,949 at the 2010 census.  White Bear Township was organized in 1858, and named after its White Bear Lake.  Over the years, the cities of White Bear Lake, Vadnais Heights, Gem Lake, and North Oaks were carved out of the township's original 36 sqmi .  It now comprises four discontiguous parcels over an area of 9.3 sqmi .  It is the only remaining township in Ramsey County.  The unincorporated communities of Bald Eagle and Bellaire are located in the township.

White Bear Lake Area School District: The White Bear Lake Area School District, abbreviated WBLAS, is a public school district located in Ramsey County, Minnesota.  It provides academic and educational services to the cities of Birchwood, Gem Lake, Hugo, Lino Lakes, Little Canada, Maplewood, North Oaks, Vadnais Heights, White Bear Lake and White Bear Township.  The District consists of nine elementary schools, two middle schools, a two-campus high school and an Area Learning Center.  The District also provides programs such as three locations for early childhood (birth-5), transition plus (special education 18-21) community services and senior programs.  The school district covers a population of approximately 50,000 residents and provides services for nearly 9,000 students ranging from early childhood education to high school graduation to adult education and senior programs.

First National Bank of White Bear: The First National Bank of White Bear is a historic former bank building in White Bear Lake, Minnesota, United States, built in 1921.  It is listed on the National Register of Historic Places for having local significance in architecture and commerce.  It is one of White Bear Lake's most architecturally sophisticated commercial buildings constructed before the 1940s.  It also served a key financial role as White Bear Lake evolved from a resort town of summer homes for nearby Saint Paul into a full-fledged city with year-round residents.

Dennis Kelly: Dennis Kelly (born November 16, 1969) is a British writer for film, television and theatre.  He is perhaps best known for co-writing BBC Three's sitcom "Pulling" with actress Sharon Horgan, for co-writing "Matilda the Musical" with comedian Tim Minchin, and for the Channel 4 conspiracy thriller "Utopia".

White Bear Theatre: The White Bear Theatre is a fringe theatre founded in 1988 at the White Bear pub in Kennington, London, and run by Artistic Director and founder Michael Kingsbury.  It is one of London's leading pub theatres, as well as one of the longest established, dedicated since inception to both new writing and to its "Lost Classics Project", which focuses on productions of obscure historical works.  Notable theatre practitioners who have worked at The White Bear include Joe Penhall, Dennis Kelly, Mark Little, Emily Watson, Tamzin Outhwaite, Kwame Kwei-Armah, Vicky Featherstone, Torben Betts, Lucinda Coxon, Adam Spreadbury-Maher, and Brice Stratford.

Pulling (TV series): Pulling is a BBC comedy series, produced by Silver River Productions and broadcast on BBC Three, about three single female friends who live in Penge, south-east London.  It was co-written by Sharon Horgan and Dennis Kelly and stars Horgan as Donna, Tanya Franks as Karen, Rebekah Staton as Louise and Cavan Clerkin as Karl.  "Pulling" was the last comedy show developed by Harry Thompson before his death.

White Bear railway station: White Bear railway station, on Station Road, Adlington, Lancashire, England, was on the Lancashire Union Railway line between St Helens and Blackburn.  The station was named in some timetables as White Bear (Adlington) or White Bear for Adlington.

White Bear Forest: The White Bear Forest is an old growth forest, located in Temagami, Ontario, Canada.  The forest is named after Chief White Bear, who was the last chief of the Teme-Augama Anishnabai before Europeans appeared in the region.  In some parts of the White Bear Forest trees commonly reach 200 to 300 years in age, while the oldest tree accurately aged in White Bear Forest was a red pine that was 400 years old in 1999.  The White Bear Forest contains one of Canada's oldest portages, dating back some 3,000 years.  Today, more than 17 km of trails access the White Bear Forest.  A trail guide is available online at http://ancientforest.org/whitebear.html.

Supporting paragraphs: White Bear Theatre Dennis Kelly
Answer: Dennis Kelly