Sean O'Callaghan
- Profesie
- Actorie
- Data nașterii
- 26 ianuarie 1954
- Locul nașterii
- Tralee, County Kerry, Ireland
- Data decesului
- 23 august 2017
Biografie
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.