| Freedom Day | 2010 | Skipper | Short Film |
| Misfits | 2009 | Old Rudy 2 | TV Show |
| The Queen | 2009 | Prince Philip | TV Show |
| Casualty 1909 | 2009 | Dr. Frederick Smith | TV Show |
| Greetings | 2007 | Ken | Movie |
| Holby Blue | 2007 | John Snr | TV Show |
| Alligator | 2007 | Glen | Short Film |
| Doctor Who: The Eighth Doctor Adventures | 2007 | Zarodnix | TV Show |
| Nearly Silent Film, A | 2006 | Signwriter | TV Show |
| House of Donn | 2006 | Dad | Short Film |
| Like Father Like Son | 2005 | Rawsthorne | TV Movie |
| New Tricks | 2003 | Frank Benson | TV Show |
| The Royal | 2003 | Bernard Hussey | TV Show |
| Foyle's War | 2002 | Brian Jones | TV Show |
| Doctors | 2000 | Frank Tyler | TV Show |
| Hold Back the Night | 1999 | Uncle Bob | Movie |
| Always and Everyone | 1999 | Joseph | TV Show |
| Holby City | 1999 | Dudley Drake / Vaughn Chewer / Don Lawson | TV Show |
| Relic Hunter | 1999 | Professor Lamenza | TV Show |
| The Last Train | 1999 | Mark | TV Show |
| Holding On | 1999 | Phil | Movie |
| Shadow Run | 1998 | Larcombe | Movie |
| The Mrs Bradley Mysteries | 1998 | Archie Burlington | TV Show |
| Midsomer Murders | 1997 | Lloyd Kirby | TV Show |
| Brassed Off | 1996 | Greasley (as Ken Colley) | Movie |
| El último viaje de Robert Rylands | 1996 | Archdale | Movie |
| Solomon & Sheba | 1995 | Nathan | TV Movie |
| Dangerfield | 1995 | Bill Hunter | TV Show |
| Wycliffe | 1994 | Sam Peploe | TV Show |
| Moving Story | 1994 | Ken Uttley | TV Show |
| Capital Lives | 1994 | | TV Show |
| Peak Practice | 1993 | Stan Jordan | TV Show |
| Unnatural Causes | 1993 | Inspector Gerry Reckless | TV Movie |
| The Bohemian Life | 1992 | Balayeur de rues | Movie |
| Between the Lines | 1992 | Chief Supt. Tattersall | TV Show |
| Heartbeat | 1992 | Clive Harris | TV Show |
| The Secret Life of Arnold Bax | 1992 | John Ireland | TV Movie |
| Prisoner of Honor | 1991 | Capt. Dreyfus | TV Movie |
| I Hired a Contract Killer | 1990 | The Killer | Movie |
| The Last Island | 1990 | Nick | Movie |
| The Plot to Kill Hitler | 1990 | Field Marshal Wilhelm Keitel | TV Movie |
| Napoleon's Last Battle: Timewatch | 1990 | Napoleon Bonaparte | TV Show |
| The Rainbow | 1989 | Mr. Brunt (as Ken Colley) | Movie |
| Poirot | 1989 | Mathew Davenheim | TV Show |
| A Summer Story | 1988 | Jim (as Ken Colley) | Movie |
| War and Remembrance | 1988 | SS Col. Paul Blobel | TV Show |
| Ten Great Writers of the Modern World | 1988 | Chief Inspector Heat | TV Show |
| The Play on One | 1988 | Inspector Tennyson | TV Show |
| The Whistle Blower | 1987 | Pickett | Movie |
| Casanova | 1987 | Le Duc | TV Movie |
| Inspector Morse | 1987 | Detective Chief Inspector Patrick Dawson | TV Show |
| MacHeath | 1987 | David Garrick | Short Film |
| When Reason Sleeps | 1987 | James Bentik | TV Show |
| Return to Treasure Island | 1986 | Ben Gunn | TV Show |
| Casualty | 1986 | Arthur Cobb / Clifford Watkins / Paddy | TV Show |
| Return to Waterloo | 1985 | The Traveller | TV Movie |
| Mussolini: The Untold Story | 1985 | King Vittorio Emmanuele | TV Show |
| Wallenberg: A Hero's Story | 1985 | Adolf Eichmann | TV Movie |
| EastEnders | 1985 | Brian | TV Show |
| Screen Two | 1985 | Sergej | TV Show |
| Function Room | 1985 | | TV Show |
| The Bill | 1984 | Mr. Baker / Acting Supt. Shannon / Patrick Houghton | TV Show |
| All the World's a Stage | 1984 | Quotations Reader / Extracts: A Month in the Country; The Playboy of the Western World; The Plough and the Stars | TV Show |
| Star Wars: Episode VI - Return of the Jedi | 1983 | Admiral Piett | Movie |
| The Scarlet and the Black | 1983 | Capt. Hirsch (as Ken Colley) | TV Movie |
| Firefox | 1982 | Colonel Kontarsky | Movie |
| I Remember Nelson | 1982 | Vice-Adm. Horatio Viscount Nelson | TV Show |
| Timewatch | 1982 | Napoleon | TV Show |
| Giro City | 1982 | Martin | Movie |
| Peter and Paul | 1981 | Theodotus | TV Movie |
| The Kenny Everett Television Show | 1981 | | TV Show |
| Star Wars: Episode V - The Empire Strikes Back | 1980 | Admiral Piett | Movie |
| Life of Brian | 1979 | Jesus | Movie |
| Minder | 1979 | Ron | TV Show |
| The Danedyke Mystery | 1979 | The Major | TV Show |
| Les Miserables | 1978 | Police Prefect | TV Movie |
| Pennies from Heaven | 1978 | The Accordion Man / Accordion Man | TV Show |
| Hazell | 1978 | Porter | TV Show |
| The BBC Television Shakespeare | 1978 | Duke Vincentio | TV Show |
| Jabberwocky | 1977 | 1st Fanatic | Movie |
| Target | 1977 | Jessal | TV Show |
| Dickens of London | 1976 | Robert Seymour | TV Show |
| Ripping Yarns | 1976 | Robber | TV Show |
| Three Days in Szczecin | 1976 | Edmund Baluka | TV Movie |
| Lisztomania | 1975 | Frédéric Chopin (as Ken Colley) | Movie |
| Flame | 1975 | Tony Devlin | Movie |
| The Love School | 1975 | Edward Burne-Jones | TV Show |
| Mahler | 1974 | Krenek (as Ken Colley) | Movie |
| Juggernaut | 1974 | Detective Brown | Movie |
| Fall of Eagles | 1974 | Father Gapon | TV Show |
| The Nine Tailors | 1974 | Potty Peake | TV Show |
| The Sweeney | 1974 | Noah Riley | TV Show |
| Churchill's People | 1974 | Ancient Beau | TV Show |
| Hitler: The Last Ten Days | 1973 | Gerhardt Boldt | Movie |
| Jack the Ripper | 1973 | Police Constable | TV Show |
| Black and Blue | 1973 | Schultz | TV Show |
| The Triple Echo | 1972 | Provo Corporal (as Ken Colley) | Movie |
| Arthur of the Britons | 1972 | Erig | TV Show |
| Crown Court | 1972 | James Armstrong / Victor Snead / Stanley Meredith / ... | TV Show |
| The Protectors | 1972 | Devlin | TV Show |
| New Scotland Yard | 1972 | Peter Elliot | TV Show |
| The Visitors | 1972 | Agent | TV Show |
| The Devils | 1971 | Legrand | Movie |
| The Rivals of Sherlock Holmes | 1971 | Farrish | TV Show |
| Performance | 1970 | Tony Farrell (as Ken Colley) | Movie |
| The Music Lovers | 1970 | Modeste | Movie |
| A Family at War | 1970 | Sergeant Jago | TV Show |
| Play for Today | 1970 | Frank Benyon / Bruce Tetley | TV Show |
| Oh! What a Lovely War | 1969 | Irish Soldier (uncredited) | Movie |
| Special Branch | 1969 | Oliver | TV Show |
| Judge Dee | 1969 | Kun Shan | TV Show |
| Dear Mother... ...Love Albert | 1969 | Jimmy | TV Show |
| The Blood Beast Terror | 1968 | James | Movie |
| The Expert | 1968 | Munt / Foreman | TV Show |
| How I Won the War | 1967 | 2nd Replacement | Movie |
| The Jokers | 1967 | De Winter (chauffeur) | Movie |
| Look and Read | 1967 | Mr. Moon | TV Show |
| Omnibus | 1967 | Hitler | TV Show |
| The White Rabbit | 1967 | Sasha | TV Show |
| City 68' | 1967 | Corbett | TV Show |
| Hobson's Choice | 1967 | Will Mossop | TV Show |
| Softly Softly | 1966 | Robins | TV Show |
| The Baron | 1966 | Dinny Brand | TV Show |
| The Informer | 1966 | Slater | TV Show |
| Macbeth | 1966 | Macbeth's servant | TV Movie |
| The Government Inspector | 1966 | Postmaster | TV Show |
| BBC Play of the Month | 1965 | Yolinichev | TV Show |
| Thirty-Minute Theatre | 1965 | Charles I / Adolf Hitler / Dr. Emil Justin / ... | TV Show |
| The Good Soldier Schweik | 1965 | Patient / Railwayman | TV Movie |
| Horizon | 1964 | Wren | TV Show |
| Redcap | 1964 | Private Bolt | TV Show |
| The Wednesday Play | 1964 | Jock / Bethold Florenberg / Nick | TV Show |
| Seventy Deadly Pills | 1964 | Covent Garden porter | Movie |
| R3 | 1964 | George Barratt | TV Show |
| It's Dark Outside | 1964 | Hammond | TV Show |
| Thorndyke | 1964 | Ellis | TV Show |
| The Plane Makers | 1963 | Jack Moss | TV Show |
| Maupassant | 1963 | | TV Show |
| Z Cars | 1962 | Lennie Bowles / Rosser / Fenton | TV Show |
| A for Andromeda | 1961 | Dead Body | TV Show |
| Ghost Squad | 1961 | Bank Teller | TV Show |
| The Avengers | 1961 | Young Man | TV Show |
| Coronation Street | 1960 | Lionel | TV Show |
| No Hiding Place | 1959 | Sidney Runtle | TV Show |
| Emergency-Ward 10 | 1957 | Arthur Pastor / Ed | TV Show |
| Armchair Theatre | 1956 | Jimmy | TV Show |
| ITV Play of the Week | 1955 | Colin / Private Leetham | TV Show |
| I am Tree | | Oak (voice) | Short Film |
