Born in Dublin, Ireland, he pursued drama at Trinity College Dublin before launching a successful acting career. He gained attention for his role in the U.S. TV series "In Justice" and further recognition with "Life on Mars" and "Terra Nova." Known for his versatility, he also starred in "Vegas" and "Agents of S.H.I.E.L.D." His film work includes voice roles in DC animated movies. Respected for his commanding presence, he has a rich career in both television and film.