Nominations:
- 2010 Golden Globes – Best Performance by an Actor in a Supporting Role in a Series, Mini-Series or Motion Picture Made for Television (How I Met Your Mother)
- 2009 Satellite Awards - Best Performance by an Actor in a Supporting Role in a Series, Mini-Series or Motion Picture Made for Television (How I Met Your Mother)
- 2009 Emmys – Outstanding Supporting Actor in a Comedy Series (How I Met Your Mother)
- 2009 Teen Choice Awards – Choice TV Actor: Comedy (How I Met Your Mother)
- 2009 Television Critics Awards – Individual Achievement in Comedy (How I Met Your Mother)
- 2009 Golden Globes – Best Performance by an Actor in a Supporting Role in a Series, Mini-Series or Motion Picture Made for Television (How I Met Your Mother)
- 2009 Gameshow Awards – Favorite Celebrity Player (Million Dollar Password)
- 2008 Emmys – Outstanding Supporting Actor in a Comedy Series (How I Met Your Mother)
- 2008 People’s Choice Awards – Favorite Scene Stealing Star (How I Met Your Mother)
- 2008 Teen Choice Awards – Choice TV Actor: Comedy (How I Met Your Mother)
- 2007 Emmys – Outstanding Supporting Actor in a Comedy Series (How I Met Your Mother)
- 2007 Teen Choice Awards – Choice TV Actor: Comedy (How I Met Your Mother)
- 1992 Golden Globes – Best Performances By An Actor in a TV Series – Comedy/Musical (Doogie Howser, MD)
- 1989 Golden Globes – Best Performance by an Actor in a Supporting Role in a Motion Picture (Clara’s Heart)
- 1989 Young Artist Awards – Best Young Actor in a Motion Picture – Drama (Clara’s Heart)
Wins:
- 2009 Emmys – Outstanding Special Class – Short-Format Live-Action Entertainment Programs (Dr. Horrible’s Sing-Along Blog)
- 2009 Streamy Awards – Best Actor in a Comedy Web Series (Dr. Horrible’s Sing-Along Blog)
- 2009 Bravo A-List Awards – A-List Actor (How I Met Your Mother)
- 1992 Young Artist Awards – Best Young Actor Starring in a Television Series (Doogie Howser, MD)
- 1991 Young Artist Awards – Best Young Actor Starring in a Television Series (Doogie Howser, MD)
- 1990 Young Artist Awards – Best Young Actor Starring in a Television Series (Doogie Howser, MD)
- 1990 People’s Choice Awards – Favorite Male Performer in a New TV Series (Doogie Howser, MD)
