Tv Series
| 1994 || ''Frasier'' || Ethan || voice; "Guess Who's Coming to Breakfast"
| 1996 || ''Homicide: Life on the Street'' || McPhee Broadman || "The True Test"
| 1996 || ''Adventures from the Book of Virtues'' || Icarus || voice; "Responsibility"
| 2002 || ''Franklin (TV series)'' || Coyote || voice
| 2002 || ''The Electric Playground''
| 2003 || ''Saturday Night Live'' || Host||
| 2004 || ''The Osbournes'' || Himself ||
| 2004 || ''King of the Hill'' || Jason || voice; "Girl, You'll Be a Giant Soon"
| 2005 || ''I'm Still Here: Real Diaries of Young People Who Lived During the Holocaust'' || Klaus Langer / Dawid Rubinowicz || voice
| 2006 || ''American Dad!'' || Ethan || voice; "Iced, Iced Babies"
| 2006 || ''Punk'd'' || Himself ||
| 2006 || ''Saving a Species: The Great Penguin Rescue'' || Host and Narrator || Television special
| 2007 || ''Yo Gabba Gabba!'' || Himself ||
| 2007 || ''Horrid Henry (TV series)'' || Horrid Henry || U.S. Dub 2007–present
| 2008 || ''Friday Night Project'' || Himself || Guest host
| 2008 || ''Celebrity [Adrenaline Junkie]'' || Himself || Became the first person to cross the Victoria Falls on ropes.
| 2009 || ''Saturday Night Live (season 35)'' || Himself || SNL Digital Short ''Threw It On The Ground''
| 2010 || ''Family Guy'' || Himself || voice; "Brian Griffin's House of Payne"
| 2010 || ''World War II: The Air War'' || Andy Rooney || voice
| 2011 || ''The Graham Norton Show'' || Himself || Guest
| 2011 || ''Wilfred (U.S. TV series)'' || Ryan Newman || TV Series
| 2012 || ''Treasure Island (2012 TV miniseries)'' || Ben Gunn || TV Two-Part Miniseries
| 2012 || ''Tron: Uprising'' || Beck || voice
| 2012 || ''Wilfred 2 Sesion (U.S. TV series)'' || Ryan Newman || TV Series