Film & TV List | Role | Media |
 |
| Law & Order: Special Victims Unit (1999–2012) | Sergeant John Munch | TV Show |
|
| Santorini Blue (2011) | Richard | Movie |
|
| 30 Rock (2011) | Sergeant John Munch | TV Show |
|
| Polish Bar (2010) | Hershel | Movie |
|
| The Wire (2008) | John Munch | TV Show |
|
| Arrested Development (2006) | Detective John Munch | TV Show |
|
| Minding the Store (2005) | Roast Comic | TV Show |
|
| Law & Order: Trial by Jury (2005) | Det. John Munch | TV Show |
|
| South Park (2000) | Loogie | TV Show |
|
| The Beat (2000) | Det. John Munch | TV Show |
|
| Law & Order (1996–2000) | Det. John Munch | TV Show |
|
| Homicide: The Movie (2000) | Det. John Munch (NYPD) (NYPD) | TV Movie |
|
| Homicide: Life on the Street (1993–1999) | Det. John Munch | TV Show |
|
| Mad About You (1999) | Detective Sharp | TV Show |
|
| Jump (1999) | Jerry | Movie |
|
| Species II (1998) | U. S. President | Movie |
|
| The X-Files (1997) | Det. John Munch | TV Show |
|
| Get on the Bus (1996) | Rick | Movie |
|
| A Very Brady Sequel (1996) | LAPD Detective | Movie |
|
| Girl 6 (1996) | Caller #4 - Beach | Movie |
|
| Deadly Pursuits (1996) | Mariano | TV Movie |
|
| The Invaders (1995) | Randy Stein | TV Movie |
|
| Prince for a Day (1995) | Bernie Silver | TV Movie |
|
| Not of This Earth (1995) | Jeremy Pallin | Movie |
|
| The Puppet Masters (1994) | Jarvis | Movie |
|
| The Larry Sanders Show (1994) | Richard Belzer | TV Show |
|
| North (1994) | Barker | Movie |
|
| Lois & Clark: The New Adventures of Superman (1994) | Inspector Henderson | TV Show |
|
| Hart to Hart: Crimes of the Hart (1994) | Det. Frank Giordano | TV Movie |
|
| Bandit: Bandit Bandit (1994) | Big Bob | TV Movie |
|
| Nurses (1994) | Jesse Wilner | TV Show |
|
| Dangerous Game (1993) | Cameo appearance | Movie |
|
| Mad Dog and Glory (1993) | M.C./Comic | Movie |
|
| Human Target (1992) | Greene | TV Show |
|
| Flash III: Deadly Nightshade (1992) | Joe Kline | Direct to Video |
|
| Missing Pieces (1992) | Baldesari | Movie |
|
| Good Sports (1991) | n/a | TV Show |
|
| The Flash (1990–1991) | Joe Kline | TV Show |
|
| Off and Running (1991) | Milt Zoloth | Movie |
|
| Monsters (1991) | Buzz Hunkle | TV Show |
|
| The Flash II: Revenge of the Trickster (1991) | Joe Kline | Direct to Video |
|
| The Bonfire of the Vanities (1990) | Television Producer | Movie |
|
| What a Dummy (1990) | n/a | TV Show |
|
| Fletch Lives (1989) | Phil | Movie |
|
| The Big Picture (1989) | Video Show Host | Movie |
|
| Mike + The Mechanics: A Closer Look (1989) | Log Cabin Father (video 'Taken In') | Direct to Video |
|
| Tattingers (1989) | n/a | TV Show |
|
| Freeway (1988) | Dr. David Lazarus | Movie |
|
| The Wrong Guys (1988) | Richard 'Belz' Belzer | Movie |
|
| Flicks (1987) | Stoner (segment 'New Adventures of the Great Galaxy') | Movie |
|
| Charlie Barnett's Terms of Enrollment (1986) | Man Reading Paper | Direct to Video |
|
| America (1986) | Gypsy Beam | Movie |
|
| Miami Vice (1986) | Captain Hook | TV Show |
|
| Pat Benatar: The Visual Music Collection (1986) | Artie the Comic (segment Le Bel Age) | Direct to Video |
|
| Moonlighting (1985) | Leonard | TV Show |
|
| Scarface (1983) | M.C. at Babylon Club | Movie |
|
| Likely Stories, Vol. 3 (1983) | Richard | TV Show |
|
| Night Shift (1982) | Pig | Movie |
|
| Author! Author! (1982) | Seth Shapiro | Movie |
|
| Likely Stories, Vol. 1 (1981) | n/a | TV Movie |
|
| Fame (1980) | M.C. | Movie |
|
| Sesame Street (1978) | Man in Row Boat #1 | TV Show |
|
| The Groove Tube (1974) | Rodriguez/Leo Batfish/The President/The Hooker | Movie |
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Film & TV List | Role | Media |
|
| Real Time with Bill Maher (2004–2011) | Himself | TV Show |
|
| Late Night with Jimmy Fallon (2010) | Himself | TV Show |
|
| The View (1999–2009) | Himself | TV Show |
|
| The Daily Show with Jon Stewart (1997–2008) | Himself | TV Show |
|
| Last Comic Standing (2008) | Himself - Celebrity Talent Scout
/
Himself - Talent Scout (New York City) (New York City) | TV Show |
|
| Late Show with David Letterman (1999–2008) | Himself
/
Himself - Guest | TV Show |
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| Celebrity Poker Showdown (2005) | Himself | TV Show |
|
| The Tonight Show with Jay Leno (1994–2003) | Himself | TV Show |
|
| Late Night with Conan O'Brien (1998–1999) | Himself | TV Show |
|
| Saturday Night Live (1978) | Himself | TV Show |
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