Sinead Keenan (IMDb)
(born 27 December 1977) is an Irish actress who has worked largely in British television. She is known for playing Kelly Hawkins in Moving Wallpaper, and Nina in Being Human.

Keenan has guest starred in episodes of Taggart, Doctors and Murder City. She also appeared in the Doctor Who serial The End of Time as Addams.

Keenan was born in Dublin.
http://en.wikipedia.org/wiki/Sinead_Keenan

Sinead plays Nina on the BBC show Being Human. Here she is waking up after her first transformation into a werewolf.