Credits

• 2022 · Inventions That Changed History as Self - Actor
• 2018 · Yellowstone as Dr. Stafford
• 2017 · Me, Myself & I as Ron
• 2016 · Crowded as John
• 2015 · Time Traveling with Brian Unger as
• 2014 · Leave it to Beavers as Narrator
• 2014 · Showdown of the Unbeatables as Self - Host
• 2013 · Scooby-Doo and the Snow Creatures as Avalanche Anderson
• 2013 · Masters of Sex as Dr. Jeffrey Fahy
• 2012 · Baby Daddy as Jason Bowman
• 2010 · How the States Got Their Shapes as
• 2009 · VH1's 100 Most Shocking Music Moments as Self
• 2009 · Gentlemen Broncos as Journalist
• 2009 · Joy Behar: Say Anything! as
• 2009 · The Great Debate as
• 2009 · Fired Up! as Male Commentator
• 2008 · Some Assembly Required as
• 2008 · I Love the New Millennium as Self
• 2008 · Bohica as Air Force Pilot
• 2008 · How Stuff's Made as Host
• 2007 · Super High Me as Narrator
• 2007 · Zach Galifianakis: Live at the Purple Onion as Himself
• 2006 · I Love the '70s: Volume 2 as Self
• 2005 · It's Always Sunny in Philadelphia as The Lawyer
• 2005 · It's Always Sunny in Philadelphia as The Attorney
• 2004 · What's New, Scooby-Doo? Vol. 1: Space Ape at the Cape as (voice)
• 2004 · Bushisms as Himself - Host
• 2003 · I'm with Her as
• 2003 · I Love the '70s as
• 2003 · Reno 911! as
• 2002 · O2Be as
• 2002 · What's New, Scooby-Doo? as Avalanche Anderson (voice)
• 2001 · Three Sisters as Kevin
• 2000 · Hollywood Off-Ramp as
• 1996 · The Daily Show as Self - Correspondent
• 1994 · Extra as
• 1982 · Nature as Narrator
• 2024 · Our Little Secret as