Callow attended the London Oratory School and then went on to study at Queen 's University Belfast ( ` Queen 's ' ) in Northern Ireland where he was active in the Northern Ireland civil-rights movement , before giving up his degree course to go into acting at the Drama Centre London .
He attended the London Oratory School .
Liam Cosgrave ( born 13 April 1920 ) is an Irish politician . Cosgrave served as Prime Minister of Ireland ( 1973 -- 77 ) and as Leader of Fine Gael ( 1965 -- 77 ) .