Being Human is a British supernatural drama television series. It was created and written by Toby Whithouse for broadcast on BBC Three. The show blends elements of flatshare comedy and horror drama. It originally starred Lenora Crichlow as Annie Sawyer, Russell Tovey as George Sands and Aidan Turner as John Mitchell — all of whom were sharing accommodation and attempting as best as they can to live a "normal" life and blend in with the ordinary humans around them. In the third series, Sinead Keenan became part of the main cast as Nina Pickering. In the fourth series the ensemble was joined by Michael Socha as Tom McNair and Damien Molony as Hal Yorke. The fifth series added Kate Bracken as Alex Miller. The first two seasons were set in Totterdown, Bristol, and the third season onwards relocated to Barry, Wales. On 13 March 2011, series creator Toby Whithouse announced that Turner had left the show and that new characters would be introduced. On 11 November 2011, Russell Tovey announced that he was leaving Being Human after the first episode of Series 4 to work full-time on his other show, Him & Her. Furthermore, Keenan announced on 9 January 2012 that she had not filmed any scenes for series 4, and would exit the show off-screen.