Irish-born screen actress known for her roles in such British TV series as Casualty, The Bill, and Coronation Street. She also played the mother of Brad Pitt's character in the 2000 comedic film Snatch.
At the age of twenty-four, she appeared in a five-part, BBC miniseries version of the classic novel Jane Eyre.
She performed on a BBC Radio series called Baldi.
Her mother and father, Maureen Kiely and Cyril Cusack, both had careers as actors, as did her three sisters, Sinéad, Niamh, and Catherine.
Her actor brother-in-law, Jeremy Irons, won Tony, Emmy, and Academy Awards.