Early life and background

O'Toole was born in Dublin, Ireland. She attended Alexandra College in Milltown

Milltown, Dublin

Milltown , Dublin 6, Ireland, is a suburb on the southside of Dublin. The townland got its name well before the 18th or 19th century. Both Milltown and Clonskeagh were "Liberties" of Dublin, following the English invasion and colonisation in 1290....

, Dublin until 2003 and graduated from Drama Centre London in 2006.

Career

O'Toole made her name six years ago in the Irish TV series On Home Ground on RTÉ. She played the female lead opposite Lily Allen's brother Alfie in Equus

Equus (play)

Equus is a play by Peter Shaffer written in 1973, telling the story of a psychiatrist who attempts to treat a young man who has a pathological religious fascination with horses....

. She has also appeared in minor roles, including the role of Doctor on Lewis (one episode, 2008), and Cora Collins on On Home Ground (two episodes, 2001–2002).