| Year | Title | Role | Notes |
| 1988 | Jake and the Fatman | Butch | Episode: "After You're Gone" |
| 1993 | Joe's Life | Leo Gennaro | 11 episodes |
| 1994 | Roseanne | Jimmy Phillips | 2 episodes |
| 1994–1997 | NYPD Blue | John | 2 episodes |
| 1995 | Extreme | Skeeter | 7 episodes |
| 1996 | American Gothic | Ray | Episode: "Rebirth" |
| Seduced by Madness | Seth | Television film |
| Tracey Takes On... | King the Dog | Episode: "Family" |
| Party of Five | Matt | 3 episodes |
| Her Last Chance | Ryan | Television film |
| 1996–1998 | Cybill | Justin Thorpe | 16 episodes |
| 1997 | Sliders | Renfield | Episode: "Stoker" |
| 1998–2006 | That '70s Show | Steven Hyde | Main cast; 200 episodesNominated – Teen Choice Award for TV Choice Sidekick (2000)Nominated – Teen Choice Award for Best Performance in a TV Series by a Young Ensemble(shared with Topher Grace, Laura Prepon, Mila Kunis, Wilmer Valderrama, and Ashton Kutcher) (1999) |
| 2001 | Strange Frequency | Randy | Television film |
| Grounded for Life | Vince | Episode: "Baby You Can't Drive My Car" |
| How to Make a Monster | Jeremy | Uncredited; Television film |
| 2002–2004 | MADtv | Various | 2 episodes |
| 2003 | King of the Hill | Cory | Voice; Episode: "Megalo Dale" |
| Robot Chicken | Various | Voice; 2 episodes |
| Stephen King's Dead Zone | Dr. Alex Conners | Episode: "Vanguard" |
| 2005 | Entourage | Himself | Episode: "Aquamansion" |
| 2006 | Kim Possible | Quinn | Voice; Episode: "And the Mole-Rat Will Be CGI" |
| 2011 | Raising Hope | Lucy's Boyfriend | Episode: "Don't Vote for This Episode" |
| White Collar | James Roland | Episode: "Where There's a Will" |
| 2012–2014 | Men at Work | Milo Foster | Main cast; 30 episodes |
| 2012 | Supah Ninjas | Limelight/ Lemuel Lightner | Episode: "Limelight" |
| 2013 | Haven | Anderson Harris | Episode: "Shot in the Dark" |
| 2014 | Royal Pains | David Van Dyke | Episode: "Ganging Up" |
| 2016–2018 | The Ranch | Jameson "Rooster" Bennett | Series regular; 50 episodes |
| 2016 | @midnight | Himself | Episode: "394" |
| WWE Raw | Himself | October 3, guest with Ashton Kutcher |
| 2017 | Easy | Annie's Boyfriend | Episode: "Baby Steps" |
