| "Committed" | (voice) |
| "Slacker Cats" | Cult cat (unknown episodes) |
| Toonces, the Cat Who Could Drive a Car | John Wilkes Booth |
| "Slacker Cats" | Cult cat |
| Paradise | John |
| "Thank God You're Here" | Himself - Judge / ... (7 episodes, 2007) |
| "Evening Magazine" | Himself |
| The Temerity of Zim | Narrator (voice) |
| High Stakes | Bo Baker (as David Foley) |
| Anne of Green Gables: The Sequel | Lewis Allen (as David Foley) |
| Echoes in the Darkness | (uncredited) |
| The Prodigious Hickey | Welsh Rabbit / Old Ironsides / Smith |
| 3 Men and a Baby | Grocery Store Clerk |
| The Prodigious Hickey | Welsh Rabbit / Old Ironsides / Smith |
| "The Kids in the Hall" | |
| "The Kids in the Hall" | |
| "The Kids in the Hall" | Various Characters / ... (103 episodes, 1988-1995) |
| "Late Night with Conan O'Brien" | Himself / ... (6 episodes, 1996-1999) |
| It's Pat | Chris |
| "NewsRadio" | Dave Nelson |
| Hacks | Neal |
| Toy Story 2 | Flik the Ant |
| The Wrong Guy | |
| The Wrong Guy | Nelson Hibbert |
| "From the Earth to the Moon" | Astronaut Al Bean |
| A Bug's Life | Flik |
| Blast from the Past | Troy |
| Dick | Bob Haldeman |
| "Will & Grace" | Stuart Lamarack (5 episodes, 2004) |
| South Park: Bigger Longer & Uncut | The Baldwin Brothers (voice) |
| Hacks | Neal |
| Monkeybone | Herb (as David Foley) |
| A Bug's Life | Flik |
| $windle | Michael Barnes |
| It's Tough to Be a Bug | Flik |
| CyberWorld | Hank the Technician (voice) |
| Love & Support | Himself |
| Run Ronnie Run | Network Executive #1 |
| My Boss's Daughter | Henderson (uncredited) |
| Kids in the Hall: Same Guys, New Dresses | |
| Kids in the Hall: Same Guys, New Dresses | Himself / Various |
| On the Line | Higgins |
| "Committed" | (unknown episodes) |
| Film-Fest DVD: Issue 4 - Hawaii | Himself |
| "Scrubs" | Dr. Hendrick |
| Stark Raving Mad | Roy |
| A Bug's Life | Flik |
| Fancy Dancing | Nat Porter |
| Wild Desk Ride | Himself / panelist |
| The Frank Truth | Himself (actor) |
| "Sketch Pad" | Kids in the Hall (unknown episodes) |
| "Last Call with Carson Daly" | Himself (2 episodes, 2004-2007) |
| The 2000 Canadian Comedy Awards | Himself |
| Cars | Flik Car |
| Grind | Tour Manager |
| Goose on the Loose | Voice of Randall the Goose |
| Ham & Cheese | Tom Brennemen |
| The True Meaning of Christmas Specials | |
| The True Meaning of Christmas Specials | |
| The True Meaning of Christmas Specials | David Bowie |
| Employee of the Month | Eric |
| "Higgins Boys and Gruber" | Himself (1990) |
| Kids in the Hall: Tour of Duty | |
| Kids in the Hall: Tour of Duty | Various |
| Intern Academy | Dr. Denton Whiteside |
| Uncensored Comedy: That's Not Funny! | (archive footage) |
| "I Love the '70s" | Himself |
| The Making of 'Dick' | Himself |
| Love & Support | Himself |
| Childstar | Philip Templeman |
| "Celebrity Poker Showdown" | Himself / ... (29 episodes, 2004-2006) |
| "The Toronto Show" | Various (1 episode, 2003) |
| Comedy Central Presents: The Commies | Himself - Presenter |
| 6th Annual Academy of Interactive Arts & Sciences Awards | Host |
| Sky High | Mr. Boy |
| Comedy Gold | Himself |
| Prom Queen: The Marc Hall Story | Principal Warrick |
| "Robson Arms" | Chuck Hoskins |