Film & TV List | Role | Media |
 |
| Battleship (2012) | Secretary of Defense | Movie |
|
| Young Justice (2011–2012) | Professor Ivo | TV Show |
|
| Game Change (2012) | Rick Davis | TV Movie |
|
| Grey's Anatomy (2010–2011) | Dr. Robert Stark | TV Show |
|
| Fairly Legal (2011) | Judge Smollet | TV Show |
|
| G.I. Joe: Renegades (2011) | Firefly | TV Show |
|
| Ben 10: Ultimate Alien (2010) | Oliver
/
Forever Knight #1
/
Mr. Webb | TV Show |
|
| Numb3rs (2005–2010) | Dr. Larry Fleinhardt | TV Show |
|
| The Spectacular Spider-Man (2008–2009) | Dr. Otto Octavius | TV Show |
|
| 24 (2008) | Tom Lennox | TV Movie |
|
| The Batman (2004–2008) | Dr. Kirk Langstrom | TV Show |
|
| Harvey Birdman, Attorney at Law (2003–2007) | X the Eliminator | TV Show |
|
| 24 (2007) | Tom Lennox | TV Show |
|
| Boston Legal (2006) | Dr. Sydney Field | TV Show |
|
| Stuart Little 3: Call of the Wild (2005) | Troopmaster (voice) | Direct to Video |
|
| Danny Phantom (2004–2005) | Sidney Poindexter | TV Show |
|
| Justice League (2005) | Chronos | TV Show |
|
| Breakin' All the Rules (2004) | Philip Gascon | Movie |
|
| This Just In (2004) | Craig Tindle | TV Show |
|
| The Lyon's Den (2003) | Darryl Nicks | TV Show |
|
| Crazy Love (2003) | Husband | TV Movie |
|
| Ally McBeal (1997–2002) | John Cage | TV Show |
|
| Balto: Wolf Quest (2002) | Muru (voice) | Direct to Video |
|
| The Ponder Heart (2001) | Uncle Daniel | TV Movie |
|
| Recess: School's Out (2001) | Fenwick (voice) | Movie |
|
| Buzz Lightyear of Star Command (2000) | Major | TV Show |
|
| The Pooch and the Pauper (2000) | Liberty (voice) | TV Movie |
|
| The Wild Thornberrys (2000) | Raju, Monkey | TV Show |
|
| Olive, the Other Reindeer (1999) | Fido (voice) | TV Movie |
|
| Snowden's Christmas (1999) | Snowden (voice) | TV Movie |
|
| Ally (1999) | John 'The Biscuit' Cage | TV Show |
|
| The Angry Beavers (1999) | Kid Friendly | TV Show |
|
| Baby Geniuses (1999) | Dan | Movie |
|
| The Secret of NIMH 2: Timmy to the Rescue (1998) | Narrator (voice) | Direct to Video |
|
| Chicago Hope (1994–1998) | Alan Birch | TV Show |
|
| Silencing Mary (1998) | Lawrence Dixon | TV Movie |
|
| Bean (1997) | David Langley | Movie |
|
| Toto Lost in New York (1996) | Ork (voice) | Direct to Video |
|
| Mojave Moon (1996) | Tire Repairman | Movie |
|
| Abducted: A Father's Love (1996) | Roy Dowd | TV Movie |
|
| Dracula: Dead and Loving It (1995) | Thomas Renfield | Movie |
|
| Tales from the Crypt (1994) | Austin Haggard | TV Show |
|
| Radioland Murders (1994) | Son Writer | Movie |
|
| Roswell (1994) | Lewis Rickett | TV Movie |
|
| Addams Family Values (1993) | Gary Granger | Movie |
|
| Cheers (1993) | Mario | TV Show |
|
| The Powers That Be (1992–1993) | Bradley Grist | TV Show |
|
| HouseSitter (1992) | Marty | Movie |
|
| Hard Promises (1991) | Stuart | Movie |
|
| By Dawn's Early Light (1990) | Sedgwick | TV Movie |
|
| Ghostbusters II (1989) | Dr. Janosz Poha | Movie |
|
| American Blue Note (1989) | Jack Solow | Movie |
|
| The Days and Nights of Molly Dodd (1987) | Steve Cooper | TV Show |
|
| Heat (1986) | Cyrus Kinnick | Movie |
|
| Johnny Bull (1986) | Joe Kovacs | TV Movie |
|
| Faerie Tale Theatre (1984) | Martin | TV Show |
|
| Sophie's Choice (1982) | Stingo | Movie |
|
| Dragonslayer (1981) | Galen | Movie |
|
Film & TV List | Role | Media |
|
| Good Morning America (2009) | Himself | TV Show |
|
| The Daily Show with Jon Stewart (1998) | Himself | TV Show |
|
| The Tonight Show with Jay Leno (1998) | Himself | TV Show |
|