Early life and education

She was born in London, with a Nigerian father, and trained at the Northern School of Contemporary Dance, gaining A-Levels in performing arts.

Career

She has appeared in many roles in the theatre, on television and in films, for example in Sorted, People Like Us, Teachers, Love Actually, Nathan Barley, Renaissance, Casanova, as Karen Blaine in the Jonathan Creek episode "The Three Gamblers", Much Ado About Nothing, Cape Wrath/Meadowlands, the Doctor Who episode "Fear Her", and FM.

In 2003, she played Rosalind in As You Like It with the Royal Shakespeare Company ("RSC") at the Swan Theatre, Stratford-upon-Avon; in 2008 she returned to the RSC to play Rosaline in Love's Labour's Lost and in 2009 appeared in a radio adaptation of a story from the short story collection The State of the Art.

She reads the part of Sephy on the audio book versions of Malorie Blackman's Noughts and Crosses series.

In January 2010, Nina appeared as Mae Pollock in Tennessee Williams' play Cat on a Hot Tin Roof, at the Novello Theatre, London.

She appeared as Colly Trent in series 2 of the BBC television drama, Five Days. Most recently, 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.

Sosanya played the character Alibe Silver in Treasure Island (2012). She has played a main character, Kate McKenzie, in series one through 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.

Filmography

Year	Film	Role	Notes
1992	The Bill	Linda	TV series (1 episode: "World to Rights")
	Prime Suspect 2	Joanne Fagunwa	TV film
1994	Hercules and the Amazon Women	Chilla	TV film
2000	Jonathan Creek	Karen Blaine	TV series (1 episode: "The Three Gamblers")
	Doctors	Jasmine	TV series (1 episode: "Late Action Hero")
	Urban Gothic	Ezili/Gabrielle	TV series (1 episode: "Deptford Voodoo")
2001	People Like Us	Cassie Pearson	TV series (2 episodes)
	Teachers	Jenny Paige	TV series (18 episodes: 2001-2002)
2002	The Jury	Marcia Thomas	TV series (6 episodes)
2003	Serious and Organised	Emma Brown	TV series (1 episode: "Episode #1.3")
	The Debt	DI Kate Jaspers	TV film
	Code 46	Anya
	Love Actually	Annie	Nominated — Phoenix Film Critics Society Award for Best Cast
2005	The Afternoon Play	Claire Cotton	TV series (1 episode: "The Good Citizen")
	Nathan Barley	Sasha	TV series (5 episodes)
	No Angels	Maggie McDonald	TV series (1 episode: "Episode No. 2.2")
	Casanova	Bellino	TV mini-series (3 episodes)
	Manderlay	Rose
	Lie Still	Veronica
	ShakespeaRe-Told	Margaret	TV series (1 episode: "Much Ado About Nothing")
2006	Renaissance	Reparez	Voice
	Doctor Who	Trish Webber	TV series (1 episode: "Fear Her")
	Sorted	Nancy	TV series (6 episodes)
	Wide Sargasso Sea	Christophine	TV film
2007	Kitchen	Christine	TV film
	Reichenbach Falls	Sinead Burns	TV film
	Cape Wrath	Samantha	TV series (8 episodes)
	Sold	Kate	TV series (1 episode: "Episode No. 1.1")
2008	Messiah: The Rapture	Sarah Templar	TV mini-series
	Bonekickers	Rachel	TV series (1 episode: "The Cradle of Civilisation")
2009	FM	Jane Edwards	TV series (6 episodes)
	Framed	Marnie Pope	TV film
2010	Five Days	Colly Trent	TV series (5 episodes)
2011	Twenty Twelve	Nina Christiani	TV series (1 episode: "Episode No. 1.2")
	Silk	Kate Brockman	TV series (6 episodes)
2012	Hustle	Linda Runcorn	TV series (1 episode: "Curiosity Caught the Kat")
	Treasure Island	Alibe Silver	TV film
	Vera	Chief Superintendent Rachel Waite	TV series (1 episode: "The Ghost Position")
	Silent Witness	DS Brooks	TV series (2 episodes)
	Lewis	Lilian Hunter	TV series (1 episode: "The Indelible Stain")
	Wizards vs Aliens	Trisha Sherwood	TV series (1 episode: "Grazlax Attacks, Part 1")
	Last Tango in Halifax	Kate McKenzie	TV series (18 episodes: 2012-2015)
2014	Shetland	Willow Reeves	TV series (2 episodes: "Dead Water, Parts 1 & 2")
	W1A	Lucy Freeman	TV series (10 episodes)

[ Source: Wikipedia ]