Sean O'Callaghan

Known for: Acting

Born: January 25, 1954 in Tralee, County Kerry, Ireland - Died: August 22, 2017

Sean O'Callaghan was a member of the Provisional Irish Republican Army, who from the late 1970s to the mid-1980s worked against the organisation from within as a mole for the Irish Government with the Garda Síochána's Special Branch.