| Year | Title | Role | Notes |
| 1999 | Dharma & Greg | Chester | Episode: "See Dharma Run" |
| 2000 | I've Got a Secret | Himself | Unknown episodes |
| Malcolm in the Middle | Phil | Episode: "Malcolm Babysits" |
| Party of Five | Irv | 2 episodes |
| Spin City | The Dentist | Episode: "Smile" |
| ER | Willie | Episode: "Mars Attacks" |
| 2001 | The West Wing | Staffer | Episode: "Bad Moon Rising" |
| 2002 | Greg the Bunny | Wilson | Episode: "Welcome to Sweetknuckle Junction" |
| Providence | Ted Stout | Episode: "Eye of the Storm" |
| 2001–2005 | CSI: Crime Scene Investigation | Ronnie Litre | 12 episodes |
| 2005 | Close to Home | Andrew Morgan | Episode: "Under Threat" |
| 2006 | 13 Graves | Andrew Schoch | Television film |
| 2007 | Crossing Jordan | Steve Anderman | Episode: "D.O.A." |
| Bones | Cop | 2 episodes |
| On the Lot | Actor |
| American Dad! | Short Order Cook (voice) | Episode: "Dope & Faith" |
| 2008 | The Mentalist | Malcom Boatwright | Episode: "Red Hair and Silver Tape" |
| Pushing Daisies | Leo Burns | Episode: "Comfort Food" |
| NCIS | Harvey Ames | Episode: "Silent Night" |
| 2009 | This Might Hurt | Brad Maynard | Television film |
| Monk | Boom Boom | Episode: "Mr. Monk and the UFO" |
| Scare Tactics | Eric the Paranormal Guy | Episode: "28 Minutes Later" |
| Nip/Tuck | Wesley Clovis | Episode: "Wesley Clovis" |
| 2009–2020 | Modern Family | Cameron Tucker | Main role; 11 seasons |
| 2010 | Good News Week | Himself | 1 episode |
| 2011 | American Horror Story: Murder House | Derrick | Episode: "Piggy Piggy" |
| 2013–2018 | Sofia the First | Minimus (voice) | 16 episodes |
| 2014 | Sesame Street | Himself | Episode: "Hansel & Gretel Playdate" |
| 2015 | Jeopardy! | 2 episodes |
| 2016 | Blue Peter | Episode: "4915" |
| Confirmation | Kenneth Duberstein | Television film |
| 2017 | The F Word | Himself | "Episode Seven" |
| The Toy Box | 16 episodes |
| 2019 | What Just Happened??! with Fred Savage | Episode: "Neighbor" |
| 2020 | America's Got Talent | Guest Judge (season 15) |
| Who Wants to Be a Millionaire | Episode: "In The Hot Seat: Eric Stonestreet and Will Forte" |
| 2021 | Madagascar: A Little Wild | Harley Horns (voice) | Episode: "A Roar Is Born" |
| 2022 | Domino Masters | Himself | Main role |
| 2023 | American Auto | Ian | 2 episodes |
| The Santa Clauses | Magnus Antas / Mad Santa | Main role (season 2) |
| 2025 | Dexter: Resurrection | Al Walker / Rapunzel | Guest star |
| 2026 | Sofia the First: Royal Magic | Minimus (voice) | Main role |
