Topzle Updated: Wikipedia source
Keith Howell Charles Allen (born 2 September 1953) is a Welsh actor, pantomime star, comedian, musician and television presenter. He is the father of singer Lily Allen and actor Alfie Allen, and brother of actor/director Kevin Allen.
| Year | Title | Role | Notes |
| 1985 | The Supergrass | Wong | |
| Loose Connections | Keith | ||
| 1986 | Comrades | James Hammett | |
| 1988 | The Yob | Patrick Church | |
| 1989 | Scandal | Kevin | |
| 1990 | Chicago Joe and the Showgirl | Lenny Bexley | |
| 1992 | Carry On Columbus | Pepi The Poisoner | |
| 1993 | The Young Americans | Jack Doyle | |
| 1994 | Shallow Grave | Hugo | |
| Beyond Bedlam | Marc Gilmour | ||
| Captives | Lenny | ||
| 1995 | Blue Juice | Mike | |
| 1996 | Loch Ness | Gordon Shoals | |
| Trainspotting | The Dealer | ||
| 1997 | Twin Town | Emrys | |
| 2000 | Rancid Aluminium | Dr Jones | |
| 2001 | The Others | Mr. Marlish | |
| My Wife Is an Actress | Dave, The Film Director | ||
| Mike Bassett: England Manager | Himself | ||
| 2002 | 24 Hour Party People | Roger Ames | |
| 2004 | Agent Cody Banks 2: Destination London | Victor Diaz | |
| De-Lovely | Irving Berlin | ||
| 2008 | A Film with Me in It | Jack | |
| 2011 | Unlawful Killing | Narrator | Also director |
| 2013 | Vinyl | Minto, band member | |
| 2015 | Hector | Jimbo | |
| 2016 | Eddie the Eagle | Terry, Father | |
| 2017 | Kingsman: The Golden Circle | Charles | |
| 2021 | La Cha Cha | Paulie | |
| Rise of the Footsoldier: Origins | Dave Simms | ||
| 2023 | The Buckingham Murders | Miller |
| Year | Title | Role | Notes |
| 1982 | The Young Ones | Pestilence | Episode: "Interesting" |
| 1988 | A Very British Coup | Thompson | 3 episodes |
| 1989–1991 | Making Out | Rex Buckley | 12 episodes |
| 1993 | Inspector Morse | John Peter Barrie | Episode: "The Day of the Devil" |
| 1994 | Faith | Jeff Wagland | 4 episodes |
| Martin Chuzzlewit | Jonas Chuzzlewit | 6 episodes | |
| 1996 | Sharman | Brady | Episode: "Hearts of Stone" |
| 1997 | Born to Run | Byron Flitch | 6 episodes |
| 1998 | The Life and Crimes of William Palmer | Dr. William Palmer | 2 episodes |
| 1999 | Jack of Hearts | Jack Denby | 6 episodes |
| 2000–2001 | Bob Martin | Vinnie | 11 episodes |
| 2004 | Black Books | Dave "Mouse Ears" Smith | Episode: "A Little Flutter" |
| Little Lady Fauntleroy | Presenter | Channel 4 documentary | |
| 2004–2006 | Bodies | Dr. Tony Whitman | 17 episodes |
| 2005–2011 | New Tricks | Roger McHugh | 2 episodes |
| 2006–2009 | Robin Hood | Vaisey, Sheriff of Nottingham | 34 episodes |
| 2007 | Mobile | Sir James Corson | 3 episodes |
| 2009 | Keith Meets Keith | himself | Television film; also director |
| 2010–2011 | The Runaway | Danny Dixon | 6 episodes |
| 2011 | Case Histories | Richard Moat | 2 episodes |
| The Body Farm | Hale | 6 episodes | |
| 2013 | Great Night Out | Darren, the farmer | Episode: |
| By Any Means | Nicholas Mason | Episode: | |
| 2014–2015 | My Mad Fat Diary | Victor | 3 episodes |
| 2015 | Uncle | Uncle Frank | Episode: |
| 2016 | We're Doomed! The Dad's Army Story | Paul Fox | Television film |
| Time Crashers | Himself | ||
| Death in Paradise | Neil Jenkins | Episode: "Lost Identity" | |
| 2018 | Marcella | Alan Summers | 6 episodes |
| 2021 | The Pembrokeshire Murders | John Cooper | 3 episodes |
| Midsomer Murders | Harry Marx | Episode: "The Stitcher Society" | |
| 2022 | Agatha Raisin | Rev. Arthur Chance | Episode: "A Spoonful of Poison" |
| 2023 | Steeltown Murders | Dai Williams | 4 episodes |
| Year | Title | Role |
| 1990 | ENGLANDneworder: "World in Motion" | Himself |
| 1995 | Blur: "Country House" | Successful Fella |
| 1998 | Fat Les: "Vindaloo" | Narrator |