| Year | Title | Role | Notes |
|---|
| 1974 | Free to Be... You & Me | Man in the maternity ward | Television film |
| 1977 | The San Pedro Bums | Stuf | Television film |
| The San Pedro Beach Bums | Stuf | 10 episodes |
| 1978–1980 | Barney Miller | Alex Fleischer, Anthony Moreau | 2 episodes |
| 1979–1980 | B.J. and the Bear | Harvey Krepler, Mushroom | 2 episodes |
| 1981 | House Calls | Huggins | Episode: "Bombing Out" |
| CHiPs | Louis | Episode: "Ponch's Angels" |
| Benson | The Plumber | Episode: "Stress" |
| 1982 | No Soap, Radio | Tuttle | 5 episodes |
| Strike Force | Unknown role | Episode: "Deadly Chemicals" |
| The Powers of Matthew Star | Bill Chambers | Episode: "The Accused" |
| 1982–1984 | Matt Houston | Farley Ward, Minister | 2 episodes |
| 1982–1985 | Trapper John, M.D. | August Havermeyer | 3 episodes |
| 1983–1990 | Not Necessarily the News | Bob Charles | 46 episodes |
| 1984–1987 | Mickey Spillane's Mike Hammer | Counterfeiter, Labbo | 2 episodes |
| 1985 | Fame | Harry Burke | Episode: "Wishes" |
| Three's a Crowd | Alex Cummings | Episode: "A Star Is Born" |
| It's a Living | Jerry Wilson | Episode: "I Write the Songs" |
| Scarecrow and Mrs. King | Teller in red jacket | Episode: "Sour Grapes" |
| 1985–1991 | Night Court | Mr. Shoope, Dr. Adelman, Dr. Charles Melnick | 3 episodes |
| 1986–1991 | The $100,000 Pyramid | Himself | 45 episodes |
| 1986 | The Golden Girls | Jacques De Courville | Episode: "Vacation" |
| 1986 | Bamboozle | Himself | |
| 1987 | Family Ties | Marv | Episode: "The Visit" |
| The New Hollywood Squares | Himself | 3 episodes |
| Second Chance | Teacher | 1 episode |
| 1987–1988 | Super Password | Himself | 20 episodes |
| 1988–1989 | Hooperman | The Devil, Clyde | 2 episodes |
| 1988 | Who's the Baby | Himself | Television film |
| 1988 | The 9th Annual CableACE Awards | Himself | |
| The 2nd Annual American Comedy Awards | |
| 1989 | Nearly Departed | Mike Dooley | 6 episodes |
| Who's the Boss? | Doug Shaffer | Episode: "It's Somebody's Birthday" |
| 1989–1990 | Falcon Crest | Jace Sampson | 8 episodes |
| It's Garry Shandling's Show | Lucas Death, Garry's Brain | 2 episodes |
| 1990 | Stingray | Morgan | Episode: "That Terrible Swift Sword" |
| 1991–1994 | Dinosaurs | Earl Sinclair | Voice, 65 episodes |
| 1991 | Knots Landing | Benny Appleman | 9 episodes |
| Charlie Hoover | Ed | Episode: "Roll One for Ed" |
| Shannon's Deal | Ted McCarthy | Episode: "First Amendment" |
| The Chuck Woolery Show | Himself | 1 episode |
| 1992 | Whoops! | Santa Claus | Episode: "Say It Ain't So, Santa" |
| 1993 | The Commish | Mike Amador | Episode: "The Set-Up" |
| Family Matters | Honest Bob | Episode: "Car Wars" |
| Bonkers | Mammoth Mammoth, Pops Klock | Voice, 2 episodes |
| Class of '96 | Barry | Episode: "Parents Weekend" |
| 1994 | Father and Scout | Aaron | Television film |
| Batman: The Animated Series | Condiment King | Voice, episode: "Make 'Em Laugh" [6] |
| Adventures in Wonderland | Scalawag Jones | Episode: "The Color of Wobucks" |
| Aladdin | Sultan Pasta Al-Dente | Voice, 3 episodes |
| 1995 | Sisters | Junior | Episode: "A Lullaby to My Father" |
| Down, Out & Dangerous | Calvin Burrows | Television film |
| University Hospital | Arnie Nicholson | Episode: "Dark Side of the Moon" |
| 1996 | Bone Chillers | Mr. Batrachian | Episode: "Teacher Creature" |
| Deadly Games | Dr. Jerry Abernathy | Episode: "Dr. Kramer" |
| Duckman | Additional voices | Episode: "Apocalypse Not" |
| The Mask: Animated Series | Buzz Stingman / Stinger | Voice, 2 episodes |
| Quack Pack | Green I Monster of Jealousy | Voice, episode: "Snow Place to Hide" |
| 1996–1997 | Nick Freno: Licensed Teacher | Kurt Fust | 22 episodes |
| Life with Louie | Flanngan | Voice, 2 episodes |
| 1997 | Cow and Chicken | Chicken Walla, Mailman, Sergeant | Voice, episode: "Cow Instincts, Don't It?" [6] |
| The Angry Beavers | Destructo, Mailman | Voice, 2 episodes [6] |
| Aaahh!!! Real Monsters | Clancy, News Anchor | Voice, episode: "The Great Escape" [6] |
| 1998 | Ally McBeal | Mr. Handy | Episode: "They Eat Horses, Don't They?" |
| Like Father, Like Santa | Snipes | Television film |
| Animaniacs | Ed | Voice, episode: "The Carpool" [6] |
| Babylon 5: The River of Souls | James Riley | Television film |
| Oh Yeah! Cartoons | Possum | Voice, episode: "Apex Cartoon Props & Novelties" [6] |
| 1998–1999 | Hercules | Additional voices | 3 episodes |
| 1998–2001 | Dharma & Greg | Mr. Gottlieb, Rabbi Mutchnik | 3 episodes |
| 1999–2001 | For Your Love | Mr. Gerard | 5 episodes |
| 1999 | Suddenly Susan | Andy Bevins | Episode: "Wedding Bell Blues" |
| The Brothers Flub | Additional voices | 16 episodes |
| Batman Beyond | Key Negotiator | Voice, episode: "Meltdown" [6] |
| Superman: The Animated Series | Dr. Cardy | Voice, episode: "A Fish Story" [6] |
| Uncle Gus in: For the Love of Monkeys | Uncle Gus | Voice, TV short |
| Mad About You | Mr. Brodsky | Episode: "Uncle Phil Goes Back to High School" |
| Walker, Texas Ranger | Stanley Chamberlain | Episode: "Tall Cotton" |
| Zenon: Girl of the 21st Century | Commander Edward Plank | Television film |
| 2000 | Phase 4 | Himself | Television film |
| Action | Bill Rothstein | Episode: "The Last Ride of the Elephant Princess" |
| 2001 | Malcolm in the Middle | Doctor | Episode: "Flashback" |
| Godzilla: The Series | Milo Sanders | Voice, episode: "Tourist Trap" |
| Chasing Destiny | Mike Ditlow | Television film |
| The Zeta Project | Dr. Donald Tannor | Voice, 2 episodes [6] |
| The Hughleys | Santa | Episode: "I'm Dreaming of a Slight Christmas" |
| Zenon: The Zequel | Commander Edward Plank | Television film |
| 2002 | Teamo Supremo | Joseph Garbaggio / Sloppy Joe | Voice, episode: "The Sinister Sloppy Joe!" |
| 2002 | As Told by Ginger | Mr. Bowers, Math Teacher | Voice, episode: "New Girl in Town" [6] |
| 2003–2004 | That's So Raven | Mr. Grozowtski | 3 episodes |
| 2004 | Higglytown Heroes | Bus Driver Hero | Voice, episode: "Catch Up with Ketchup" |
| Walk Fit | Himself | Television film |
| Miss Cast Away and the Island Girls | Noah | Television film |
| Zenon: Z3 | Commander Edward Plank | Television film |
| 2005 | Lilo & Stitch: The Series | Additional voices | Episode: "Sample" |
| Curb Your Enthusiasm | Ben Heineman | 2 episodes |
| I Love the 80's 3-D | Himself | Documentary |
| 2006 | Boston Legal | Judge Gilbert Potts | Episode: "Tick or Treat" |
| Wagtail | Himself | |
| 2007 | On the Lot | Himself | Unknown episodes |
| State of Mind | Dr. Shapiro | Episode: "Snow Melts" |
| 2008 | The Suite Life on Deck | Simms | Episode: Parrot Island" |
| 2009 | Splatter | Dr. Bellows | Episode: "Where There's a Will" |
| 2011 | Shake It Up! | Santa | Episode: "Jingle It Up" |
| 2012 | A Christmas Wedding Date | Santa Sam | Television film |
| Desperate Housewives | Patrick | Episode: "You Take for Granted" |
| 2013 | All I Want for Christmas | Lewis | Television film |
| 2014 | Q N' A with Mikki and Shay | Himself | 1 episode |
| 2015 | Girl Meets World | Principal Yancy | Episode: "Girl Meets the New Teacher" |
| The Biz | Saul | TV short |
| You'll Be Fine | Dave | Episode: "We've Been Waiting" |
| 2016 | Underachievers | Principal Hartley | TV short |
| 2018 | See Ya | Morris | Episode: "3 F's" |
| 2021 | Pilot Season | Ron | Episode: "Behind the Times" |
