Credits for Walsh include starring in Comedy Central's critically acclaimed "Dog Bites Man", acting as a correspondent for "The Daily Show with Jon Stewart" from 2001-2002, and regular appearances in MTV's "Human Giant." He has appeared in such movies as "Semi-Pro" opposite Will Ferrell for New Line, "Old School," "Bad Santa," "Road Trip," and "Elf." He also wrote and starred in the cult indie-comedy "Martin & Orloff."
More recently, Matt has appeared in "The Hangover" opposite Bradley Cooper, Ed Helms, and Zach Galifianakis for Warner Bros, David Wain's "Role Models" opposite Paul Rudd for Universal, Adam McKay's "Step Brothers" opposite Will Ferrell for Columbia, "Cyrus" opposite Marisa Tomei, John C. Reilly, and Jonah Hill, and "Due Date" with Robert Downey Jr., and Jamie Fox for Warner Bros. Walsh consulted on the 2009 comedy "Bruno" starring Sacha Baron Cohen. Matt will soon appear in "Queens of Country", opposite Lizzy Caplan and Ron Livingston.
Matt can currently be seen recurring on HBO's "Hung" and recently recurred on the NBC series "Outsourced" and guest starred on NBC's "Community." His directorial debut, which he also co-wrote is entitled "High Road" starring Abby Elliott, Rob Riggle, and Lizzy Caplan. It premiered at the 2011 Newport Beach Film Festival and is in negotiations to sell to Millennium Films. His 1/2 hour comedy series "Players" premiered last year for Spike TV, which Matt created, executive produced, wrote, and starred in. He just finished shooting a series regular role for HBO’s VEEP, opposite Julia Louis-Dreyfus. He will also appear in TED, directed by Seth MacFarlane for Universal.