<P> In January 2010, Sosanya appeared as Mae Pollock in Tennessee Williams' play Cat on a Hot Tin Roof, at the Novello Theatre, London . </P> <P> She appeared as Colly Trent in series 2 of the BBC television drama Five Days . She appeared in the BBC4 television series Twenty Twelve, a comedy about the London 2012 Olympic buildup, and the BBC1 drama series Silk and Hustle . She also made a brief appearance in the children's CBBC science fiction series, Wizards vs Aliens as Benny Sherwood's mother, Trisha . </P> <P> Sosanya played the character Alibe Silver in Treasure Island (2012). She has played a main character, Kate McKenzie, in series one to three of the BBC original drama Last Tango in Halifax during 2012--2015, and a main character, Lucy Freeman, in the TV series W1A in 2014 . In 2015, she starred with Catherine Tate and Mark Gatiss in a new play, The Vote, in the run - up to the UK 2015 General Election . In 2016, she started in the play Young Chekhov trilogy and as DCI Laura Porter in the ITV series Marcella . </P> <P> In 2014 she appeared in the world premiere production of Privacy at the Donmar Warehouse, London . In 2016 she appeared in the world premiere production of Elegy at the Donmar Warehouse . </P>

Who plays kate in last tango in halifax
find me the text answering this question