Film & TV List | Role | Media |
 |
| Person of Interest (2011–2012) | Harold Finch | TV Show |
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| Generator Rex (2011) | Nanite Alpha | TV Show |
|
| G.I. Joe: Renegades (2011) | Dr. Archibald Monev | TV Show |
|
| Parenthood (2011) | Andy Fitzgerald | TV Show |
|
| God in America (2010) | John Winthrop | TV Show |
|
| Lost (2006–2010) | Ben Linus | TV Show |
|
| Lost: Final Chapter (2010) | Ben Linus (also archive footage) (also archive footage) | TV Movie |
|
| Lost: A Journey in Time (2009) | Ben Linus (voice) (also archive footage) (voice) (also archive footage) | TV Movie |
|
| Ready? OK! (2008) | Charlie New | Movie |
|
| Lost: Past, Present & Future (2008) | Ben Linus (also archive footage) (also archive footage) | TV Movie |
|
| Jumping Off Bridges (2006) | Frank Nelson | Movie |
|
| The Legend of Zorro (2005) | Harrigan | Movie |
|
| The Inside (2005) | Marty Manning | TV Show |
|
| 29th and Gay (2005) | Gorilla | Movie |
|
| Straight-Jacket (2004) | Victor | Movie |
|
| Law & Order: Special Victims Unit (2004) | Allan Shaye | TV Show |
|
| Saw (2004) | Zep Hindle | Movie |
|
| Whoopi (2003) | F. Thomas Erickson | TV Show |
|
| Skin (2003) | Scarpelli | TV Show |
|
| Without a Trace (2003) | Stuart Wesmar | TV Show |
|
| The X-Files (2002) | Oliver Martin | TV Show |
|
| Unfaithful (2002) | Josh | Movie |
|
| Law & Order: Criminal Intent (2002) | Gerry Rankin | TV Show |
|
| The Laramie Project (2002) | Reverend | TV Movie |
|
| Sounds from a Town I Love (2001) | n/a | TV Movie |
|
| The Education of Max Bickford (2001) | n/a | TV Show |
|
| The District (2000) | Man in Bar | TV Show |
|
| Stark Raving Mad (1999) | Mr. Putnam | TV Show |
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| For Love of the Game (1999) | Gallery Doorman | Movie |
|
| I'll Take You There (1999) | Tom | Movie |
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| Playing by Heart (1998) | Bosco | Movie |
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| Grace & Glorie (1998) | Arnold Dudley | TV Movie |
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| The Impostors (1998) | Burtom's Assistant | Movie |
|
| The Journey (1997) | Michael | Movie |
|
| Orpheus Descending (1990) | Clown | TV Movie |
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Film & TV List | Role | Media |
|
| The Late Late Show with Craig Ferguson (2012) | Guest | TV Show |
|
| Late Show with David Letterman (2011) | Himself
/
Warden in Instructional Video | TV Show |
|
| The View (2008–2010) | Himself | TV Show |
|
| The Soup (2010) | Himself | TV Show |
|
| Ace of Cakes (2009) | Himself | TV Show |
|