Film & TV List | Role | Media |
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| Smallville (2001–2011) | Lionel Luthor | TV Show |
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| The Good Wife (2011) | Jared Andrews | TV Show |
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| Medium (2011) | Carson Churchill | TV Show |
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| Heroes (2009) | Samson Gray | TV Show |
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| Brothers & Sisters (2009) | Henry Mittner | TV Show |
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| Numb3rs (2006–2009) | Simon Kraft | TV Show |
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| Law & Order: Criminal Intent (2006–2008) | Dr. Declan Gage | TV Show |
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| The Civilization of Maxwell Bright (2005) | Ogden | Movie |
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| A Kiss at Kerouac's Grave (2004) | Will | Movie |
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| Tricks (2004) | Ralph | Movie |
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| Smallville: Chloe Chronicles (2004) | Lionel Luthor | TV Movie |
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| Arli$$ (2002) | Bobby Salmon | TV Show |
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| Mid-Century (2002) | Bill Gates | Movie |
|
| On Edge (2001) | Yuri Moskivin | Movie |
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| The Body (2001) | Jesus Christ Street Actor | Movie |
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| Get Real (2000) | Fate | TV Show |
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| Snoops (1999) | Gary Hyndman | TV Show |
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| Macbeth in Manhattan (1999) | Richard/Director | Movie |
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| Brimstone (1998–1999) | The Devil | TV Show |
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| Payback (1999) | Phil | Movie |
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| The Tempest (1998) | Anthony Prosper | TV Movie |
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| The New Batman Adventures (1998) | Edward Nygma | TV Show |
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| Superman (1998) | The Riddler | TV Show |
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| Chicago Hope (1998) | Max Demming | TV Show |
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| Homicide: Life on the Street (1998) | Nelson Broyles | TV Show |
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| Dead Broke (1998) | Sam | Movie |
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| The Broken Giant (1998) | Bennett Hale | Movie |
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| Dead by Midnight (1997) | Dr. Armond Drake/Ben Hamill | TV Movie |
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| Medusa's Child (1997) | Rogers Henry | TV Movie |
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| Batman & Robin (1997) | Dr. Jason Woodrue | Movie |
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| Dead Man's Gun (1997) | Jack Fleetwood (segment Fool's Gold) | TV Movie |
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| Caroline in the City (1997) | Hilton Traynor | TV Show |
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| Love! Valour! Compassion! (1997) | John Jeckyll, James Jeckyll | Movie |
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| Remember WENN (1996) | Adrian Carr | TV Show |
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| Automatic (1995) | Goddard Marx | Movie |
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| Night of the Running Man (1995) | Derek Mills | Movie |
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| In the Mouth of Madness (1994) | Saperstein | Movie |
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| Batman (1992–1994) | The Riddler | TV Show |
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| Dinosaurs (1992–1994) | Babysitter | TV Show |
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| Assault at West Point: The Court-Martial of Johnson Whittaker (1994) | Maj. Asa Bird Gardiner | TV Movie |
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| Schemes (1994) | Victor Kraft | Direct to Video |
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| Frasier (1993) | Ned Miller | TV Show |
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| Ed and His Dead Mother (1993) | A.J. Pattle | Movie |
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| Star Trek: Deep Space Nine (1993) | Verad | TV Show |
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| Animaniacs (1993) | Rasputin | TV Show |
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| The Hidden Room (1993) | John Burke | TV Show |
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| South Beach (1993) | Roberts | TV Show |
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| Majority Rule (1992) | 'Mac' Mackin | TV Movie |
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| The Ray Bradbury Theater (1992) | Walter Grip | TV Show |
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| Grass Roots (1992) | Harold Perkerson | TV Movie |
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| Drug Wars: The Cocaine Cartel (1992) | Loco Garrison | TV Movie |
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| Tales from the Crypt (1991) | Undertaker | TV Show |
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| American Dreamer (1990–1991) | Bill | TV Show |
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| Dead on the Money (1991) | Russell Blake | TV Movie |
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| A Season of Giants (1991) | Leonardo DaVinci | TV Movie |
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| The Days and Nights of Molly Dodd (1988–1991) | Mike Sayles | TV Show |
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| What Ever Happened to Baby Jane? (1991) | Billy | TV Movie |
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| L.A. Law (1990) | Dr. Paul Kohler | TV Show |
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| El Diablo (1990) | The Preacher | TV Movie |
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| RoboCop 2 (1990) | Magnavolt Salesman | Movie |
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| Gremlins 2: The New Batch (1990) | Daniel Clamp | Movie |
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| An Enemy of the People (1990) | Dr. Thomas Stockman | TV Movie |
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| The Hitchhiker (1989) | Miles Duchet | TV Show |
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| Breaking Point (1989) | Dr. Gerber | TV Movie |
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| Traveling Man (1989) | Chick Beeler | TV Movie |
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| Twist of Fate (1989) | Max Brodsky | TV Movie |
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| Meet the Hollowheads (1989) | Henry Hollowhead | Movie |
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| Scrooged (1988) | Brice Cummings | Movie |
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| The Chocolate War (1988) | Brother Leon | Movie |
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| David (1988) | Charles Rothenberg | TV Movie |
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| Rocket Gibraltar (1988) | Rolo Rockwell | Movie |
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| Hot Paint (1988) | Algernon | TV Movie |
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| Masquerade (1988) | Tony Gateworth | Movie |
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| Moving Target (1988) | Dobbins | TV Movie |
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| Murder, She Wrote (1986–1987) | Andrew Durbin
/
Franz Mueller | TV Show |
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| Paul Reiser Out on a Whim (1987) | n/a | TV Movie |
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| Nutcracker: Money, Madness & Murder (1987) | Richard Behrens | TV Movie |
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| Miami Vice (1987) | Steve Duddy | TV Show |
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| Willy/Milly (1986) | Fred Niceman | Movie |
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| 52 Pick-Up (1986) | Alan Raimy | Movie |
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| Apology (1986) | Philip | TV Movie |
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| A Killing Affair (1986) | Sheb Sheppard | Movie |
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| The Twilight Zone (1986) | Alien Ambassador (segment A Small Talent for War) (segment A Small Talent for War) | TV Show |
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| White Nights (1985) | Wynn Scott | Movie |
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| An Early Frost (1985) | Victor DiMato | TV Movie |
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| ABC Afterschool Specials (1985) | Mr. Stewart | TV Show |
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| Lime Street (1985) | Mr. Balzar | TV Show |
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| American Playhouse (1984) | Ross Halley | TV Show |
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| Ernie Kovacs: Between the Laughter (1984) | Pierre Lafitte | TV Movie |
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| George Washington (1984) | Gen. Charles Lee | TV Movie |
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| The Evil That Men Do (1984) | Paul Briggs, U.S. Embassy | Movie |
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| Search for Tomorrow (1983–1984) | Billy Vargas | TV Show |
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| Kennedy (1983) | William Walton | TV Movie |
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| The Face of Rage (1983) | n/a | TV Movie |
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| Rage of Angels (1983) | Scanlon/Jackson | TV Movie |
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| A Little Sex (1982) | Walter | Movie |
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| The Incredible Shrinking Woman (1981) | Tom Keller | Movie |
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| Melvin and Howard (1980) | Freese - Attorney #2 | Movie |
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| The Mountain Men (1980) | Nathan Wyeth | Movie |
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| The American Success Company (1980) | Ernst | Movie |
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| Last Embrace (1979) | Richard Peabody | Movie |
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| Under This Sky (1979) | n/a | TV Movie |
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| Somebody Killed Her Husband (1978) | Herbert Little | Movie |
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| Julia (1977) | Sammy | Movie |
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| The Andros Targets (1977) | n/a | TV Show |
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| Annie Hall (1977) | Actor Boy Friend | Movie |
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| Kojak (1975) | Billy Jo | TV Show |
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| Shamus (1973) | Johnnie | Movie |
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