Credits

• 2022 · Comedy Classics: Porridge as (archive footage)
• 2007 · Hitler: The Comedy Years as Mr. Mackay (archive footage) (uncredited)
• 1987 · A Wreath of Roses as Morgan Beddoes
• 1986 · Defence of the Realm as Victor Kingsbrook
• 1986 · Lovejoy as Luciano
• 1986 · Feller By The Name Of... as Police Inspector
• 1985 · A Sense of Freedom as Inspector Davidson
• 1985 · Dreamchild as Gryphon (voice)
• 1985 · Mann's Best Friends as Hamish James Ordway
• 1985 · Water as Eric
• 1984 · Sleepwalker as Restaurant Proprietor
• 1984 · To Catch a King as Hitler
• 1984 · Diana as Blackier
• 1984 · Night Train to Murder as Mackay
• 1983 · Ill Fares the Land as
• 1983 · Fraggle Rock: Live by the Rule of the Rock as The Captain (UK version)
• 1983 · Local Hero as Ben Knox
• 1983 · Fraggle Rock as
• 1982 · Britannia Hospital as Chief Superintendant Johns
• 1981 · Going Gently as Austin Miller
• 1981 · If You Go Down in the Woods Today as Colonel Noriss
• 1981 · The Life and Times of David Lloyd George as Bonar Law
• 1980 · The Clearances as
• 1979 · Porridge as Mr. Mackay
• 1979 · The Paul Daniels Magic Show as Self
• 1979 · Tales of the Unexpected as Edward
• 1978 · Strangers as Morton
• 1978 · Going Straight as Mr. Mackay
• 1977 · Here I Stand... as John Knox
• 1977 · Rob Roy as Bailie Nicol Jarvie
• 1976 · Porridge: The Desperate Hours as Mr. Mackay
• 1976 · Willie Rough as Hughie
• 1976 · Clay, Smeddum and Greenden as Alec Webster
• 1975 · Porridge: No Way Out as Mr. Mackay
• 1975 · The Master of Ballantrae as Ephrain Mackellar
• 1974 · Churchill's People as Bishop Wishart
• 1974 · Porridge as Mr. Mackay
• 1974 · Shoulder to Shoulder as Keir Hardie
• 1974 · Playhouse as Austin Miller
• 1974 · Shapes In The Water as Narrator
• 1973 · Three's One as Dr. Leafer
• 1973 · Seven of One as Mr Mackay
• 1973 · Nothing But the Night as Cameron
• 1973 · Some Mothers Do 'Ave 'Em as
• 1972 · The Edwardians as Alexander Ross
• 1971 · Gumshoe as John Straker
• 1971 · Justice as Judge Seaton
• 1971 · Orkney as Thomas
• 1971 · Brett as
• 1971 · Brett as Anderson
• 1970 · Play for Today as Dr. Leafer
• 1970 · Play for Today as Thomas - Celia
• 1970 · Doctor Who and the Silurians as Dr. Quinn
• 1969 · Special Branch as Det. Chief Supt. Inman
• 1969 · Vendetta for The Saint as Euston
• 1968 · Dad's Army as Doctor McCeavedy
• 1968 · The Man in the Iron Mask as M. Baisemeaux
• 1968 · The Expert as Judge
• 1965 · Andover and the Android as Cullen
• 1965 · BBC Play of the Month as Eck
• 1965 · BBC Play of the Month as Engstrand
• 1965 · Out of the Unknown as Cullen
• 1965 · Strife as David Roberts
• 1965 · The Vital Spark as Reverend McGubbin
• 1965 · The Vital Spark as Minister
• 1964 · Theatre 625 as Vincent MacMaster
• 1963 · Doctor Who as Dr. Quinn
• 1963 · Festival as Dr. Swinburne
• 1963 · For King and Country: Out There as Scotsman
• 1962 · A Prize of Arms as Cpl. Henderson
• 1962 · The Saint as John Everett
• 1962 · The Saint as James Euston
• 1962 · Dr. Finlay's Casebook as
• 1962 · Z-Cars as
• 1962 · Private Potter as Soldier
• 1961 · Drama 61-67 as Norman Curtis
• 1961 · The Avengers as Professor Chadwick
• 1961 · The Avengers as Glover
• 1961 · The Avengers as Master
• 1960 · Theatre '70 as Bernard Webber
• 1960 · Armchair Mystery Theatre as Ron Ashton
• 1959 · Brand as Villager
• 1957 · Enchanted Isles as Narrator
• 1956 · Armchair Theatre as Mr. Roberts
• 1956 · Armchair Theatre as Mr. Ricardo
• 1953 · Laxdale Hall as Andrew Flett
• 1952 · The Brave Don't Cry as Dan Wishart
• 1952 · I'm A Stranger as Alastair Campbell (as Fulton MacKay)