ActorJoseph O'Conor
- Born February 14, 1910 in Dublin, Ireland
- Died January 21, 2001
- 2001MacbethFilmKing Duncan
- 1999The Messenger: The Story of Joan of ArcFilmchief inquisitor
- 1998ElizabethFilmEarl of Derby
- 1998ImmortalityFilm
- 1996Dalziel and PascoeSeriesWally Tallantire
- 1994Tom & VivFilmBishop of Oxford
- 1993The Forbidden QuestFilmJ.C. Sullivan
- 1991PerformanceSeriesEarl of Northumberland
- 1986CasualtySeriesGeorge Polston
- 1983Henry VI Part 1FilmDuke of Exeter / Shepherd
- 1982The Dark CrystalFilmNarrator / Urskeks (voice)
- 1982The Barchester ChroniclesSeriesBunce
- 1981OthelloFilmLodovico
- 1981John DiamondFilmAlfred Diamond
- 1980A Private BattleFilm
- 1979Only ConnectFilmJohn Bury
- 1979The Other SideSeriesJohn Bury
- 1978Romeo and JulietFilmFriar Laurence
- 1978The BBC Television ShakespeareSeriesFriar Laurence
- 1978The CopyistFilmHeinrich Schalleplatte
- 1977BBC2 Play of the WeekSeriesHeinrich Schalleplatte
- 1975The Ghost of Adelphi TerraceFilmGeorge Bernard Shaw
- 1974The Black WindmillFilmSir Edward Julyan
- 1973Lost HeartsFilmMr. Abney (as Joseph O'Connor)
- 1973Penny GoldFilmBlachford
- 1973Father Dear FatherFilmVicar
- 1973Yellow DogFilmDover
- 1973Centre PlaySeriesGeorge Bernard Shaw
- 1972DoomwatchFilmVicar
- 1971A Ghost Story for ChristmasSeriesMr. Abney
- 1970ManhuntSeriesVon Gebhardt
- 1970The Prime Minister's DaughterFilmMayland
- 1969Anne of the Thousand DaysFilmFisher
- 1969A Walk with Love and DeathFilmPierre of St. Jean
- 1969The PossessedFilmStepan Verhovensky
- 1969Plays of TodaySeriesAston
- 1968Oliver!FilmMr. Brownlow
- 1967The Forsyte SagaSeries'Old Jolyon' Forsyte
- 1967Sir Arthur Conan DoyleSeriesJames Campbell
- 1966Mystery and ImaginationSeriesGeneral
- 1966The SpiesSeriesPolini
- 1966Lord RaingoSeriesAndy Clyth
- 1965Out of the UnknownSeriesFreeman
- 1965The TroubleshootersSeriesCaptain Kenny, Frank Follett
- 1965No Place Like EarthFilmFreeman
- 1965The World of George Orwell: 1984FilmO'Brien
- 1965The Mill on the FlossSeriesMr. Tulliver
- 1965Hit and RunSeriesGerald Prestley
- 1964The GorgonFilmCoroner
- 1964The Devil-Ship PiratesFilmDon Jose Margella
- 1964Crooks in CloistersFilmFather Septimus
- 1964Theatre 625SeriesO'Brien, Sergeant Kettlewell
- 1964The Wednesday PlaySeriesJoseph Brendon
- 1964RedcapSeriesCO
- 1963FestivalSeriesFather Arnall
- 1961GorgoFilmProf. Hendricks
- 1961The Rose AffairFilmO'Riorden
- 1961The Day of the FoxFilmColonel Gregory
- 1960Twentieth Century Theatre: ColombeFilmLagarde
- 1960An Arabian NightFilmCaliph Haroun-Al-Raschid
- 1959Worm in the BudFilmDistrict Inspector
- 1950Paul Temple's TriumphFilmInspector Crane