Sean O'Callaghan
Explore the best Sean O'Callaghan movies ranked by Movie Rankings users. Browse biography, ranked filmography, and movie detail links for Sean O'Callaghan.
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.
What is the best Sean O'Callaghan movie?
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Sources & freshness
Last refreshed from site data on May 9, 2026.
