Film & TV List | Role | Media |
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| Madagascar 3: Europe's Most Wanted (2012) | Melman (voice) | Movie |
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| John Carter (2012) | Young Thark Warrior | Movie |
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| Merry Madagascar (2009) | Melman (voice) | TV Movie |
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| Madagascar: Escape 2 Africa (2008) | Melman (voice) | Movie |
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| Nothing But the Truth (2008) | Ray Armstrong | Movie |
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| 30 Rock (2007) | Greenzo | TV Show |
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| Big Nothing (2006) | Charlie | Movie |
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| Madagascar (2005) | Melman (voice) | Movie |
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| Duane Hopwood (2005) | Duane Hopwood | Movie |
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| Friends (1994–2004) | Dr. Ross Geller | TV Show |
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| Curb Your Enthusiasm (2004) | David Schwimmer | TV Show |
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| Uprising (2001) | Yitzhak Zuckerman | TV Movie |
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| Band of Brothers (2001) | Herbert M. Sobel | TV Movie |
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| Hotel (2001) | Jonathan Danderfine | Movie |
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| Picking Up the Pieces (2000) | Father Leo Jerome | Movie |
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| All the Rage (1999) | Chris | Movie |
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| The Thin Pink Line (1998) | Kelly Goodish/J.T. | Movie |
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| Apt Pupil (1998) | Edward French | Movie |
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| Six Days Seven Nights (1998) | Frank Martin | Movie |
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| Since You've Been Gone (1998) | Robert S. Levitt | TV Movie |
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| Kissing a Fool (1998) | Max Abbitt | Movie |
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| Breast Men (1997) | Dr. Kevin Saunders | Movie |
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| The Pallbearer (1996) | Tom Thompson | Movie |
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| The Single Guy (1995) | Dr. Ross Geller | TV Show |
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| Wolf (1994) | Cop | Movie |
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| Monty (1994) | Greg Richardson | TV Show |
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| Blossom (1993) | Sonny Catalano | TV Show |
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| NYPD Blue (1993) | Josh '4B' Goldstein | TV Show |
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| L.A. Law (1992–1993) | Dana Romney | TV Show |
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| The Waiter (1993) | Evil Waiter | Movie |
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| Twenty Bucks (1993) | Neil Campbell | Movie |
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| Crossing the Bridge (1992) | John Anderson | Movie |
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| The Wonder Years (1991–1992) | Michael | TV Show |
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| Flight of the Intruder (1991) | Duty Officer | Movie |
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| A Deadly Silence (1989) | Robert 'Rob' Cuccio | TV Movie |
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Film & TV List | Role | Media |
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| Late Night with Jimmy Fallon (2011) | Guest | TV Show |
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| Entourage (2009) | Himself | TV Show |
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| The View (2005–2008) | Himself | TV Show |
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| Late Night with Conan O'Brien (1998–2008) | Himself | TV Show |
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| The Oprah Winfrey Show (2003–2004) | Himself | TV Show |
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| The Tonight Show with Jay Leno (1996–2004) | Himself | TV Show |
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| Entertainment Tonight (2003) | Himself | TV Show |
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| The Daily Show with Jon Stewart (2002) | Himself | TV Show |
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| Late Show with David Letterman (1997) | Himself | TV Show |
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| Saturday Night Live (1995) | Himself - Host | TV Show |
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