In 2006, she captivated audiences in the West End production of Tennessee Williams' Summer and Smoke at the Apollo Theatre, London, showcasing her profound ability to embody complex characters.
She appeared in the first and third seasons of the historical drama, delivering a compelling portrayal of the noblewoman caught in the tumultuous court of King Henry VIII.
Beyond these notable roles, O'Toole has contributed to numerous stage and screen productions, consistently delivering performances that resonate with audiences.
Her other film credits include The Confusion of Tongues (2014), Hideaways (2011), Possession (2002), Dancing at Lughnasa (1998), Get Well Soon (BBC TV series), Eden, Laughter in the Dark, 32A and The Dead.
[3] She was named after American actress Katharine Hepburn,[4] whom her father admired and would later work with in the historical drama The Lion in Winter, released in 1968.