| Toy Story 5 (2026) as Smarty Pants (voice) |
| Lorne (2026) as Self |
| Starring Dick Van Dyke (2025) as Self |
| Mutineer (2025) |
| Downey Wrote That (2025) as Self |
| If I Had Legs I'd Kick You (2025) as Therapist |
| John Candy: I Like Me (2025) as Self - Comedian & Podcast Host |
| Ladies & Gentlemen... 50 Years of SNL Music (2025) as Self - SNL Writer 1988 - 1991 |
| This Is the Tom Green Documentary (2025) as Self (archive footage) |
| Return of the King: The Fall and Rise of Elvis Presley (2024) as Self |
| Outstanding: A Comedy Revolution (2024) as Self (archive footage) (uncredited) |
| BRATS (2024) as Self (archival footage) (uncredited) |
| Please Don't Destroy: The Treasure of Foggy Mountain (2023) as Farley |
| Albert Brooks: Defending My Life (2023) as Self |
| Money Shot: The Pornhub Story (2023) as Self (archive footage) (uncredited) |
| Turn Every Page - The Adventures of Robert Caro and Robert Gottlieb (2022) as Self |
| Show Business Is My Life (But I Can't Prove It) (2022) as Self |
| Meat Loaf - A Celebration Of Life (2022) as Self (archive footage) |
| Weird: The Al Yankovic Story (2022) as Andy Warhol |
| Norm Macdonald: Nothing Special (2022) as Self |
| The Mitchells vs. the Machines (2021) as Glaxxon 5000 (voice) |
| Sam & Mattie Make a Zombie Movie (2021) as Self |
| You Cannot Kill David Arquette (2020) as Self (archive footage) |
| Becoming (2020) as Self |
| Dads (2019) as Self |
| Fyre (2019) as Self (archive footage) |
| Fyre Fraud (2019) as Himself (Archival Footage) |
| This Is Bob Hope... (2017) as Self |
| Movie Sound Effects: How Do They Do That? (2017) as The Riddler (voice) |
| Sandy Wexler (2017) as Testimonial |
| The Lego Batman Movie (2017) as The Riddler (voice) |
| Laurie Kilmartin: 45 Jokes About My Dead Dad (2016) as Self |
| The Last Laugh (2016) as Self (archive footage) (uncredited) |
| George Fest: A Night to Celebrate the Music of George Harrison (2016) as Self |
| How to Lose Weight in 4 Easy Steps! (2016) as Craig |
| Thank You, Del: The Story of the Del Close Marathon (2015) as Self |
| Being Canadian (2015) as Self |
| Sharktopus vs. Pteracuda (2014) as Conan O'Brien |
| The Secret Life of Walter Mitty (2013) as Conan O'Brien |
| Batman: The Dark Knight Returns (2013) as David Endochrine (voice) |
| Clear History (2013) as Conan O'Brien |
| Now You See Me (2013) as Conan O’Brien |
| Inequality for All (2013) as Self (archive footage) |
| Batman: The Dark Knight Returns, Part 2 (2013) as David Endocrine (voice) |
| Thunderstruck (2012) as Conan O'Brien (uncredited) |
| George Lopez: It's Not Me, It's You (2012) as Self |
| Vanilla Ice Archive (2012) as Self (archive footage) |
| Johnny Carson: King of Late Night (2012) as Self |
| Conan O'Brien Can't Stop (2011) as Self |
| Give It Up for Greg Giraldo (2011) as Self |
| Public Speaking (2011) as Self (archive footage) |
| The Robot Chicken: Star Wars Episode III (2010) as Zuckuss (voice) |
| Love & Other Drugs (2010) as Self (archive footage) (uncredited) |
| I'm Still Here (2010) as Conan O'Brien (archive footage) (uncredited) |
| The Simpsons 20th Anniversary Special - In 3D! On Ice! (2010) as Self |
| Scenes from a Parish (2009) as Himself |
| The Robot Chicken: Star Wars Episode II (2008) as Zuckuss (voice) |
| VH1 Rock Honors: The Who (2008) as Self |
| The Great Buck Howard (2008) as Conan O’Brien |
| The Robot Chicken: Star Wars (2007) as Zuckuss / Ponda Baba's Boss (voice) |
| Pittsburgh (2006) |
| Queer Duck: The Movie (2006) as Conan O'Brien (voice) |
| Earth to America (2005) as Self |
| Bewitched (2005) as Conan O'Brien |
| Saturday Night Live in the '80s: Lost and Found (2005) as Self |
| Late Night with Conan O'Brien: The Best of Triumph the Insult Comic Dog (2004) as Himself |
| Sesame Street: What's the Name of That Song? (2004) as Self (archive footage) |
| Late Night with Conan O'Brien: 10th Anniversary Special (2003) as Self |
| Can't Buy Me Lunch: Another Look at The Rutles (2003) as Self - Interviewee |
| Comedy Central Roast of Denis Leary (2003) as Self |
| Gigantic (A Tale of Two Johns) (2003) as Self |
| NBC 75th Anniversary Special (2002) as Self |
| Vanilla Sky (2001) as Conan O'Brien |
| Storytelling (2001) as Himself |
| 50 Years of NBC Late Night (2001) as Self - Host |
| America | A Tribute to Heroes (2001) as Self |
| Pootie Tang (2001) as Conan O’Brien (uncredited) |
| Porn Star: The Legend of Ron Jeremy (2001) as Self (archive footage) |
| Book of Shadows: Blair Witch 2 (2000) as Self (archive footage) |
| Sesame Street: Elmopalooza! (1998) as Self (uncredited) |
| Tomorrow Night (1998) as Himself |
| Rodney Dangerfield's 75th Birthday Toast (1997) as Self |
| National Lampoon's Favorite Deadly Sins (1995) as Self (uncredited) |
| Surprise! Instant Xmas Carol! as Self |