Sinead Keenan is an Irish actress with a wide range of television, film and stage credits. Keenan is best known to Irish viewers for playing Farrah Phelan in Fair City and is best known to UK viewers for playing the role of werewolf Nina Pickering on BBC Three's supernatural drama Being Human, which began airing in 2009. Keenan has been a regular cast member since Series 3 began airing in 2011. In November 2011, Keenan's on-screen partner, Russell Tovey announced he would be leaving Being Human to work full-time on his BBC Three sitcom, Him & Her. On 9 January 2012, it was announced by show creator Toby Whithouse and confirmed by Keenan on Twitter that she would not be appearing in the fourth series of the supernatural drama.