Film & TV List | Role | Media |
 |
| Adopting Terror (2012) | Dr. Ziegler | TV Movie |
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| Blue-Eyed Butcher (2012) | Ron Wright | TV Movie |
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| Tim and Eric's Billion Dollar Movie (2012) | Narrator | Movie |
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| 12 Wishes of Christmas (2011) | Harry | TV Movie |
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| Dan Vs. (2011) | Don | TV Show |
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| Curb Your Enthusiasm (2011) | Dr. Rivkin | TV Show |
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| Drop Dead Diva (2011) | Principal Blake | TV Show |
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| Family Guy (2011) | Steven Keaton | TV Show |
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| Brothers & Sisters (2011) | Edward LeMonde | TV Show |
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| Pizza Man (2011) | Professor Tucker | Movie |
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| Psych (2010) | Cody Blair | TV Show |
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| Tim and Eric Awesome Show, Great Job! (2010) | Robin | TV Show |
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| Parks and Recreation (2010) | Michael | TV Show |
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| Stay Cool (2009) | Mr. McCarthy | Movie |
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| Broken Windows (2008) | Teddy | Movie |
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| 100 Million BC (2008) | Dr. Frank Reno | Direct to Video |
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| An American in China (2008) | Manny Braddock | Movie |
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| Medium (2008) | Peter Barrister | TV Show |
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| El Sonoma (2008) | Mr. Goreman | Movie |
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| Boston Legal (2007) | Father Nicholas McClinton | TV Show |
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| CSI: NY (2005) | Tom Endecott | TV Show |
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| Mrs. Harris (2005) | Leslie Jacobson | TV Movie |
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| The Drew Carey Show (2004) | Don Newmark - Kellie's Father
/
Don Newmark | TV Show |
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| Combustion (2004) | Talbot | TV Movie |
|
| ER (2001–2004) | John 'Jack' Carter Jr. | TV Show |
|
| Tremors 4: The Legend Begins (2004) | Hiram Gummer | Direct to Video |
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| Tremors (2003) | Burt Gummer | TV Show |
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| Law & Order: Special Victims Unit (2002) | Arthur Esterman | TV Show |
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| Law & Order: Criminal Intent (2002) | Dr. Charles Webb | TV Show |
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| Tremors 3: Back to Perfection (2001) | Burt Gummer | Direct to Video |
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| Family Law (2000) | Anthony Jacobs | TV Show |
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| Spin City (2000) | Dr. Petersen | TV Show |
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| Law & Order (2000) | Carl Braddock | TV Show |
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| Norm (1999) | Councilman Krantz | TV Show |
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| Ally McBeal (1999) | Mr. Volpe | TV Show |
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| True Heart (1999) | Dick | Movie |
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| Batman Beyond: The Movie (1999) | Warren McGinnis (voice) | TV Movie |
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| Batman Beyond (1999) | Warren McGinnis | TV Show |
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| Ground Control (1998) | Murray | Movie |
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| The Hunger (1997) | Professor Frank Ingram | TV Show |
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| Ed McBain's 87th Precinct: Heatwave (1997) | Lt. Peter Byrnes | TV Movie |
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| Kounterfeit (1996) | Captain Evans | Direct to Video |
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| Promised Land (1996) | Greg Smith | TV Show |
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| The Outer Limits (1996) | Stanley | TV Show |
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| Tremors II: Aftershocks (1996) | Burt Gummer | Direct to Video |
|
| Sometimes They Come Back... Again (1996) | Jon Porter | Direct to Video |
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| The Making of a Hollywood Madam (1996) | Paul Fleiss | TV Movie |
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| Ed McBain's 87th Precinct: Ice (1996) | Lt. Peter Byrnes | TV Movie |
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| Hijacked: Flight 285 (1996) | Ben Horn | TV Movie |
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| Deceived by Trust: A Moment of Truth Movie (1995) | Dr. Gordon Powell | TV Movie |
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| Awake to Danger (1995) | Ben McAdams | TV Movie |
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| In the Heat of Passion II: Unfaithful (1994) | Howard | Movie |
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| Avalanche (1994) | Brian Kemp | TV Movie |
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| Dream On (1994) | Father Sherman McKigney | TV Show |
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| In the Line of Duty: The Price of Vengeance (1994) | Tom Williams | TV Movie |
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| Snowbound: The Jim and Jennifer Stolpa Story (1994) | Kevin Mulligan | TV Movie |
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| Batman (1993) | Lloyd Ventris | TV Show |
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| Firestorm: 72 Hours in Oakland (1993) | n/a | TV Movie |
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| With a Vengeance (1992) | Frank Tanner | TV Movie |
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| Alan & Naomi (1992) | Sol Silverman | Movie |
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| Cool as Ice (1991) | Gordon | Movie |
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| In the Line of Duty: Manhunt in the Dakotas (1991) | Agent Richard Mayberly | TV Movie |
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| Vestige of Honor (1990) | n/a | TV Movie |
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| Tremors (1990) | Burt Gummer | Movie |
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| A Connecticut Yankee in King Arthur's Court (1989) | King Arthur | TV Movie |
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| Family Ties (1982–1989) | Steven Keaton | TV Show |
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| In the Line of Duty: The F.B.I. Murders (1988) | William Bill Russell Matix | TV Movie |
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| Day by Day (1988) | Steven Keaton | TV Show |
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| Big Business (1988) | Dr. Jay Marshall | Movie |
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| Right to Die (1987) | Bob Bauer | TV Movie |
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| Night Court (1987) | Arthur Thursby | TV Show |
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| A Letter to Three Wives (1985) | George Phipps | TV Movie |
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| Family Ties Vacation (1985) | Steven Keaton | TV Movie |
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| Finder of Lost Loves (1985) | Tom Lindsay | TV Show |
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| Summer Fantasy (1984) | Ben Brannigan | TV Movie |
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| Cook & Peary: The Race to the Pole (1983) | James Troth | TV Movie |
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| Little Gloria... Happy at Last (1982) | Gilchrist | TV Movie |
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| The Neighborhood (1982) | Jack Wolfe | TV Movie |
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| Dream House (1981) | Julius 'J.J.' Jacobson | TV Movie |
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| F.D.R.: The Last Year (1980) | Dr. Howard Bruenn | TV Movie |
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| Just Tell Me What You Want (1980) | Lothar | Movie |
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| A Girl Named Sooner (1975) | Jim Seevey | TV Movie |
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Film & TV List | Role | Media |
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| The Oprah Winfrey Show (2011) | Himself | TV Show |
|