| Year | Title | Role | Notes |
| 1996 | Spitting Image | Various characters | Voice, 6 episodes |
| London Shouting | (unknown) | Television film |
| 1997 | Look and Read | (unknown) | Voice, 8 episodes |
| 1998 | Comedy Nation | Various characters | Unknown episodes |
| Europigeon | Terry Wogan | Voice, television film |
| Alexei Sayle's Merry-Go-Round | Voice-over | Voice, 6 episodes |
| Jack and the Beanstalk | Second Henchman | Televised pantomime at The Old Vic theatre |
| You Are Here | Dr. Phil Phillips | Television film |
| 1998–1999 | How Do You Want Me? | Dean Yardley | 9 episodes |
| 1999 | Murder Most Horrid | Tony Frost | Episode: "Dinner at Tiffany's" |
| Smack the Pony | (unknown) | 2 episodes |
| Sermon from St. Albion's | Alastair Campbell | 1 episode |
| The Magical Legend of the Leprechauns | George Fitzpatrck | 2-part mini-series |
| Hippies | Narrator, Robin | 2 episodes: "Hairy Hippies" & "Hippy Dippy Hippies" |
| 1999–2001 | Spaced | Duane Benzie | 3 episodes: "Beginnings", "Battles" & "Gone" |
| 2000 | Black Books | Howell Granger | Episode: "The Big Lock-Out" |
| 2001 | World of Pub | Garry, various characters | 6 episodes |
| 2002 | The What a Cartoon! Show | Butch | Voice, episode: "Colin Versus the World in 'Mr. Lounge Lizard |
| Ted and Alice | Mark | Mini-series; 3 episodes |
| I'm Alan Partridge | Tex | Episode: "Never Say Alan Again" |
| 15 Storeys High | (unknown) | 2 episodes: "Ice Queen" & "Pool Kids" |
| 2002–2005 | Look Around You | Scientist, Peter Packard | 14 episodes; also creator, writer & producer |
| 2003 | Comic Relief 2003: The Big Hair Do | Terry Wogan | Television Special; segment: "Blankety Blank" |
| Little Britain | Journalist at Prime Minister's Questions | Episode: "Biggest House of Cards". Uncredited role |
| 2003–2004 | Hardware | Kenny | 12 episodes |
| 2006 | Agatha Christie's Marple | Walter Fane | Episode: "Sleeping Murder" |
| The IT Crowd | Lift, Voice-over, Newsreader | Voice, 3 episodes: "Yesterday's Jam", "Calamity Jen" & "Aunt Irma Visits" |
| Our Thirties | Austin | Television short film |
| South Park | Darth Chef | Voice; episode: "The Return of Chef" |
| 2007–2008 | The Peter Serafinowicz Show | Various characters | 7 episodes; also creator, writer & producer |
| 2009 | Stewart Lee's Comedy Vehicle | Voice-over | Voice, 6 episodes |
| Snake 'n' Bacon | (unknown) | Voice, television short film |
| 2010 | Whitechapel | DCI Torbin Cazenove | 3 episodes |
| Driver Dan's Story Train | Driver Dan | Voice, 103 episodes |
| 2010–2011 | Running Wilde | Fa'ad Shaoulian | 13 episodes |
| 2011 | Funny or Die Presents | Puppet | Voice, episode: "The Terrys" |
| Shooting Stars | Brian Butterfield (alter ego) | 1 episode |
| This Is Jinsy | Eric Dunt | Episode: "Cupboards" |
| 2011–2013 | Archer | George Spelvin, Benoit, additional voices | Voice, 3 episodes: "Tragical History", "Jeu Monegasque" & "Once Bitten" |
| NTSF:SD:SUV:: | S ., Sagan | Voice, 21 episodes |
| 2012 | The Increasingly Poor Decisions of Todd Margaret | Tito the Cycling Lawyer | Episode: "Todd and His Valet Arrive in Leeds and What they Saw There" |
| The Secret Policeman's Ball 2012 | Paul McCartney | Television Special |
| Watson & Oliver | Various characters | 2 episodes |
| Driver Dan's Story Train | Driver Dan | Voice; UK version, 2 episodes: "Whirly Wind" & "Picnic Puzzle" |
| Comedy Feeds | (unknown) | Voice, episode: "Dawson Bros. Funtime" |
| Childrens Hospital | Michael Caine | Voice, episode: "British Hospital" |
| American Dad! | Goran the Mutilator | Voice, episode: "Killer Vacation" |
| Bad Sugar | Rolph Cauldwell | Television film, pilot |
| 2013 | Fit | Brian Butterfield (alter ego) | 2 episodes |
