| Year | Title | Role | Notes |
| 1957 | Studio One | Juror | Season 9 Episode 20: "The Defender: Part 1" (uncredited) |
| Studio One | Juror | Season 9 Episode 21: "The Defender: Part 2" (uncredited) |
| Studio One | Third Actor | Season 10 Episode 2: "The Night America Trembled" |
| 1958 | Decoy | Sergeant | Season 1 Episode 18: "An Eye for an Eye" |
| 1960 | Route 66 | Second Man | Season 1 Episode 4: "The Man on the Monkey Board" |
| 1961 | Route 66 | Scully | Season 1 Episode 28: "The Opponent" |
| Route 66 | Lieutenant Tegeler | Season 2 Episode 7: "The Mud Nest" |
| Naked City | Lieutenant Vincent Busti | Season 2 Episode 13: "A Hole in the City" |
| Naked City | Lieutenant Vincent Busti | Season 2 Episode 23: "New York to L.A." |
| Target: The Corruptors! | Tyler | Season 1 Episode 9: "The Golden Carpet" |
| 1962 | Route 66 | Carl Selman | Season 2 Episode 21: "Shoulder the Sky, My Lad" |
| Route 66 | Custody Officer Lincoln Peers | Season 3 Episode 8: "Welcome to the Wedding" |
| Outlaws | Keef | Season 2 Episode 13: "The Dark Sunrise of Griff Kincaid" |
| Cain's Hundred | Dave Keller | Season 1 Episode 21: "Blues for a Junkman: Arthur Troy" |
| Alfred Hitchcock Presents | Warden Bragan | Season 7 Episode 30: "What Frightened You, Fred?" |
| Sam Benedict | Dr. Everett Colner | Season 1 Episode 4: "Nothing Equals Nothing" |
| Alcoa Premiere | Daniel Stryker | Season 2 Episode 10: "The Contenders" |
| Dr. Kildare | John Fossman | Season 2 Episode 11: "The Legacy" |
| The Untouchables | Fedor Bartok | Season 3 Episode 16: "The Death Tree" |
| The Untouchables | Jimmy Canada | Season 4 Episode 1: "The Night They Shot Santa Claus" |
| The Untouchables | Frank | Season 4 Episode 8: "Elegy" |
| 1963 | The Untouchables | Frank | Season 4 Episode 13: "Search for a Dead Man" |
| The Eleventh Hour | Max Brenson | Season 1 Episode 15: "My Name is Judith, I'm Lost, You See" |
| The Alfred Hitchcock Hour | Jack Stander | Season 1 Episode 19: "To Catch a Butterfly" |
| The Virginian | George Johnson | Season 1 Episode 26: "Echo of Another Day" |
| Stoney Burke | Kapp | Season 1 Episode 30: "Tigress by the Tail" |
| The Nurses | Phil Granger | Season 2 Episode 4: "The Gift" |
| Ben Casey | Jerome Lynch | Season 3 Episode 7: "The Echo of a Silent Cheer: Part 2" |
| The Lieutenant | Charles Perry | Season 1 Episode 10: "A Troubled Image" |
| The Outer Limits | Detective Sergeant Thomas Siroleo | Season 1 Episode 11: "It Crawled Out of the Woodwork" |
| The Richard Boone Show | Harry Forman | Season 1 Episode 13: "Where's the Million Dollars?" |
| Dr. Kildare | Dr. Frank Williams | Season 2 Episode 28: "Tightrope Into Nowhere" |
| The Defenders | Tim Sellers | Season 3 Episode 6: "The Cruel Hook" |
| Mr. Novak | Harmon Stern | Season 1 Episode 1: "First Year, First Day" |
| 1964 | Bob Hope Presents the Chrysler Theatre | Sergeant Slade | Season 1 Episode 22: "A Case of Armed Robbery" |
| The Defenders | Harry Obermayer | Season 4 Episode 3: "Hero of the People" |
| Slattery's People | Frank Radcliff | Season 1 Episode 1: "Question: What is Truth?" |
| Slattery's People | Frank Radcliff | Season 1 Episode 3: "Question: Remember the Dark Sins of Youth?" |
| Slattery's People | Frank Radcliff | Season 1 Episode 11: "Question: Do the Ignorant Sleep in Pure White Beds?" |
| Slattery's People | Frank Radcliff | Season 1 Episode 12: "Question: Which One Has the Privilege?" |
| The Reporter | Max Holte | Season 1 Episode 13: "Vote for Murder" |
| The Farmer's Daughter | George Chase | Season 2 Episode 15: "Like Father, Like Son" |
| Gunsmoke | Sergeant Wilks | Season 10 Episode 8: "Hung High" |
| Profiles in Courage | Oliver E. Wells | Season 1 Episode 4: "Richard T. Ely" |
| 1965 | Voyage to the Bottom of the Sea | Brynov | Season 1 Episode 27: "The Exile" |
| Burke's Law | Pablo Vasquez | Season 3 Episode 6: "Nightmare in the Sun" |
| A Man Called Shenandoah | Sam Chance | Season 1 Episode 7: "The Verdict" |
| Mr. Novak | Paul Berg | Season 2 Episode 15: "An Elephant is Like a Tree" |
| Profiles in Courage | President Ulysses S. Grant | Season 1 Episode 17: "Hamilton Fish" |
| The Fugitive | Sheriff Mayhew | Season 2 Episode 26: "Masquerade" |
| The Fugitive | Roy Malinek | Season 3 Episode 6: "Three Cheers for Little Boy Blue" |
| 1966 | Please Don't Eat the Daisies | Alvin | Season 1 Episode 20: "My Good Friend, Whatsisname" |
| The Rat Patrol | Captain Friedrich | Season 1 Episode 2: "The Life Against Death Raid" |
| Run for Your Life | Cappi | Season 2 Episode 4: "The Committee for the 25th" |
| Felony Squad | Bull Bradovich | Season 1 Episode 13: "The Killer Instinct" |
| The Doomsday Flight | Feldman | Television film |
| Gunsmoke | Jack Redmond | Season 12 Episode 8: "The Whispering Tree" |
| The F.B.I. | John Carl Brock | Season 1 Episode 28: "The Tormentors" |
| 1967 | The Fugitive | Joe Bantam | Season 4 Episode 15: "Run the Man Down" |
| The Girl from U.N.C.L.E. | George Kramer | Season 1 Episode 26: "The Double-O-Nothing Affair" |
| Iron Horse | Ned Morley | Season 2 Episode 16: "The Prisoners" |
| The Invaders | Taugus | Season 1 Episode 16: "Wall of Crystal" |
| Judd, for the Defense | Captain Paul Wyatt | Season 1 Episode 3: "The Other Face of the Law" |
| Ironside | Marlon Davis / Warrant Officer Frank Simpson | Season 1 Episode 15: "The Fourteenth Runner" |
| Insight | Friar Lawrence | Episode 183: "Seed of Dissent" |
| 1968 | Insight | Father Gannon | Episode 198: "Three Cornered Flag" |
| The F.B.I. | Walter Gretzler | Season 3 Episode 13: "The Dynasty" |
| The Wild Wild West | Furman Crotty | Season 3 Episode 22: "The Night of the Amnesiac" |
| The Invaders | Harry Ferguson | Season 2 Episode 23: "The Miracle" |
| 1969 | Insight | Norm | Episode 310: "The Poker Game" |
| The F.B.I. | Pete Zacharias | Season 4 Episode 21: "The Attorney" |
| Mission: Impossible | George Simpson | Season 3 Episode 13: "The Mind of Stefan Miklos" |
| Judd, for the Defense | District Attorney Orloff | Season 2 Episode 17: "The Law and Order Blues: "Part 2" |
| Ironside | Warrant Officer Frank Simpson | Season 2 Episode 26: "Not with a Whimper, But a Bang" |
| Medical Center | Coach Trask | Season 1 Episode 1: "The Last Ten Yards" |
| The Name of the Game | Cesare Marino | Season 1 Episode 17: "The Inquiry" |
| The Name of the Game | Vince Leonard | Season 2 Episode 8: "The Perfect Image" |
| Here Come the Brides | Matt Balter | Season 1 Episode 14: "The Firemaker" |
| Here Come the Brides | Matt Balter | Season 2 Episode 8: "The Legend of Big Foot" |
| CBS Playhouse | Nat Congdon | Season 3 Episode 2: Sadbird |
| Daughter of the Mind | Saul Wiener | Television film |
| 1970 | House on Greenapple Road | Sheriff Muntz |
| The Old Man Who Cried Wolf | Dr. Morheim |
| Insight | Mr. Watkins | Episode 327: "A Woman of Principal" |
| The Mod Squad | Harry Loring | Season 2 Episode 25: "Should Auld Acquaintance Be Forgot?" |
| 1970–1977 | The Mary Tyler Moore Show | Lou Grant | 166 episodes |
| 1971 | Insight | Bernie | Episode 334: "The Wrinkle Squad" |
| The Mod Squad | Joe Walton | Season 4 Episode 5: "Color of Laughter, Color of Tears" |
| They Call It Murder | Chief Otto Larkin | Television film |
| The Last Child | Barstow |
| 1972 | Insight | Henry | Episode 343: "The Freak" |
| The Mod Squad | Sergeant Ed Lassiter | Season 5 Episode 1: "The Connection" |
| Cade's County | Nick Grainger | Season 1 Episode 23: "The Fake" |
| Haunts of the Very Rich | Al Hunsicker | Television film |
| 1973 | The Girl Most Likely to... | Ralph Varone |
| Police Story | Lieutenant Dave Blodgett | Season 1 Pilot Episode: "Slow Boy" |
| 1974 | Police Story | Arch Tatum | Season 2 Episode 1: "A Dangerous Age" |
| Rhoda | Lou Grant | Season 1 Episode 8: "Rhoda's Wedding" |
| 1975 | The Wide World of Mystery | Detective Ed Ames | Episode: "The Impersonation Murder Case" |
| Death Scream | Peter Singleton | Television film |
| Hey, I'm Alive | Ralph Flores |
| Hawaii Five-O | August March | Season 8 Episode 14: "Wooden Model of a Rat" |
| 1976 | Police Story | Frank Moran | Season 4 Episode 5: "Three Days to Thirty" |
| Rich Man, Poor Man | Axel Jordache | Season 1 Episode 1: "Part 1: Chapters 1 and 2" |
| Rich Man, Poor Man | Axel Jordache | Season 1 Episode 2: "Part 2: Chapters 3 and 4" |
| 1977 | Insight | God | Episode 411: "This Side of Eden" |
| Roots | Captain Thomas Davies | Season 1 Episode 1: "Part 1" |
| Roots | Captain Thomas Davies | Season 1 Episode 3: "Part 3" |
| The Gathering | Adam Thornton | Television film |
| 1977–1982 | Lou Grant | Lou Grant | 114 episodes |
| 1978 | Great Performances | Various characters | Season 7 Episode 6: "The Good Doctor" |
| 1979 | The Family Man | Eddie Madden | Television film |
| 1981 | The Marva Collins Story | Narrator | Voice, television film |
| 1984 | Saturday Night Live | Himself (host) | Episode: "Ed Asner/The Kinks" |
| Off the Rack | Sam Waltman | Season 1 Pilot Episode |
| 1985 | Off the Rack | Sam Waltman | Season 1 Episode 1: "Partners" |
| Off the Rack | Sam Waltman | Season 1 Episode 2: "A Date with Kate" |
| Off the Rack | Sam Waltman | Season 1 Episode 3: "Here Comes the Bribe" |
| Off the Rack | Sam Waltman | Season 1 Episode 4: "Who Do You Trust?" |
| Off the Rack | Sam Waltman | Season 1 Episode 5: "The Letter" |
| Off the Rack | Sam Waltman | Season 1 Episode 6: "Immigration Man" |
| Tender Is the Night | Devereux Warren | Miniseries |
| The Greatest Adventure: Stories from the Bible | Joshua | Voice, Season 1 Episode 5: "Joshua and the Battle of Jericho"[1] |
| 1986 | Tall Tales & Legends | Lucky Jake | Season 1 Episode 4: "My Darlin' Clementine" |
| Highway to Heaven | Harold | Season 2 Episode 17: "The Last Assignment" |
| Kate's Secret | Dr. Resnick | Television film |
| The Christmas Star | Horace McNickle |
| 1987 | Cracked Up | Reverend Vincent Owens |
| 1987–1988 | The Bronx Zoo | Principal Joe Danzig | 21 episodes |
| 1988 | A Friendship in Vienna | Opah Oskar Reikman | Television film |
| 1990 | Not a Penny More, Not a Penny Less | Harvey Metcalfe |
| 1990–1996 | Captain Planet and the Planeteers | Hoggish Greedly | Voice, 33 episodes |
| 1991 | Switched at Birth | Ted Marx | Television film |
| Yes, Virginia, There Is a Santa Claus | Edward P. Mitchell |
| 1991–1992 | The Trials of Rosie O'Neill | Walter Kovacs | 17 episodes |
| 1992 | Cruel Doubt | Bill Osteen | Season 1 Episode 1 |
| Cruel Doubt | Bill Osteen | Season 1 Episode 2 |
| Fish Police | Chief Abalone | Voice, Season 1 Episode 1: "The Shell Game" |
| Fish Police | Chief Abalone | Voice, Season 1 Episode 2: "A Fish Out of Water" |
| Fish Police | Chief Abalone | Voice, Season 1 Episode 3: "Beauty's Only Fin Deep" |
| Fish Police | Chief Abalone | Voice, Season 1 Episode 4: "The Codfather" |
| Fish Police | Chief Abalone | Voice, Season 1 Episode 5: "The Two Gils" |
| Fish Police | Chief Abalone | Voice, Season 1 Episode 6: "No Way to Treat a Fillet-dy" |
| Batman: The Animated Series | Roland Daggett | Voice, Season 1 Episode 4: "Feat of Clay: Part I"[1] |
| Batman: The Animated Series | Roland Daggett | Voice, Season 1 Episode 5: "Feat of Clay: Part II"[1] |
| Batman: The Animated Series | Roland Daggett | Voice, Season 1 Episode 12: "Appointment in Crime Alley"[1] |
| Batman: The Animated Series | Roland Daggett | Voice, Season 1 Episode 33: "Cat Scratch Fever"[1] |
| 1992–1993 | Hearts Afire | George Lahti | 12 episodes |
| 1993 | Animaniacs | Papa Bear | Voice, Season 1 Episode 12: "Garage Sale of the Century"[1] |
| Bonkers | Grumps | Voice, Season 1 Episode 58: "Seems Like Old Toons" |
| Gypsy | Pop | Television film |
| 1994 | Dinosaurs | Evil Georgie | Voice, Season 4 Episode 14: "Georgie Must Die!" |
| 1994–1995 | Thunder Alley | Gil Jones | 27 episodes |
| 1994–1996 | Gargoyles | Hudson, Jack Danforth, Burbank, Security Guard #2 | Voice, 46 episodes[1] |
| 1994–1998 | Spider-Man: The Animated Series | J. Jonah Jameson | Voice, 35 episodes[1] |
| 1995 | Duckman | Mort Sidelman | Voice, Season 2 Episode 6: "The Germ Turns" |
| 1995–1997 | Freakazoid! | Sergeant Mike Cosgrove | Voice, 20 episodes[1] |
| 1996 | Gone in the Night | Detective John Waters | Television film |
| Bruno the Kid | Engineer | Voice |
| Roseanne | Lou Grant | Season 9 Episode 1: "Call Waiting"; uncredited |
| The Magic School Bus | General Araneus | Voice, Season 3 Episode 3: "Spins a Web"[1] |
| The Story of Santa Claus | Santa Claus | Voice, Television film[1] |
| The Real Adventures of Jonny Quest | Von Romme / Sentry #4 | Voice, Season 2 Episode 11: "Nuclear Netherworld"[1] |
| Mad About You | Zigmund Klarik | Season 4 Episode 23: "The Finale: Part 2" |
| Mad About You | Zigmund Klarik | Season 4 Episode 24: "The Finale: Part 3" |
| 1996–1997 | Gargoyles: The Goliath Chronicles | Hudson, Burbank, Street Person #2 | Voice, 10 episodes[1] |
| 1997 | Mad About You | Zigmund Klarik | Season 5 Episode 12: "The Handyman" |
| Dog's Best Friend | Jeep | Television film |
| Adventures from the Book of Virtues | Daniel | Voice, Season 1 Episode 10: "Faith" |
| Dead Man's Gun | Jebusi McKinney | Season 1 Episode 11: "Next of Kin" |
| The Angry Beavers | Risk Keeper | Voice, Season 1 Episode 8: "I Dare You"[1] |
| Life with Louie | Mr. Applegate | Voice, Season 3 Episode 9: "The Kiss Is the Thing" |
| Jumanji | The Judge | Voice, Season 2 Episode 10: "The Trial" |
| The Practice | Judge Matlin Pratt | Season 2 Episode 3: "The Blessing" |
| Payback | Jack Patkanis | Television film |
| 1997–1998 | The New Adventures of Zorro | Additional voices | 26 episodes |
| 1998 | Soul Man | Frank Weber | Season 2 Episode 10: "Yes Sir, That's My Baby" |
| Jumanji | The Judge | Voice, Season 3 Episode 9: "The Ultimate Weapon" |
| Ask Harriet | Old Man Russell | Season 1 Episode 2: "Hot Coco" |
| Ask Harriet | Old Man Russell | Season 1 Episode 5: "Lips That Pass in the Night" |
| Ask Harriet | Old Man Russell | Season 1 Episode 13: "Pumps and Circumstances" |
| The Closer | Carl Dobson | 10 episodes |
| More Tales of the City | Jack Lederer | Miniseries; Season 1 Episode 5 |
| Hercules | Mentor | Voice, Season 1 Episode 20: "Hercules and the Disappearing Heroes" |
| Maggie Winters | Nathan Winters | Season 1 Episode 9: "Angstgiving Day" |
| The X-Files | Maurice | Season 6 Episode 6: "How the Ghosts Stole Christmas" |
| Superman: The Animated Series | Granny Goodness | Voice, Season 2 Episode 27: "Little Girl Lost: Part I"[1] |
| Superman: The Animated Series | Granny Goodness | Voice, Season 2 Episode 28: "Little Girl Lost: Part II"[1] |
| 1999 | The Sissy Duckling | Elmer's father | Voice, television film |
| The Simpsons | Editor | Voice, Season 11 Episode 3: "Guess Who's Coming to Criticize Dinner?" |
| Recess | Thaddeus T. Third V | Voice, Season 4 Episode 13: "The Biggest Trouble Ever" |
| Olive, the Other Reindeer | Santa Claus | Television film |
| 2000 | Common Ground | Ira |
| Superman: The Animated Series | Granny Goodness | Voice, Season 3 Episode 12: "Legacy: Part I"[1] |
| Superman: The Animated Series | Granny Goodness | Voice, Season 3 Episode 13: "Legacy: Part II"[1] |
| Recess | Thaddeus T. Third V | Voice, Season 5 Episode 4: "The C-Note" |
| Touched by an Angel | Bud | Season 6 Episode 17: "Here I Am" |
| The Hoop Life | Coach | Season 1 Episode 22: "The Second Chance" |
| Arliss | Lenny Crowley | Season 5 Episode 10: "Last Call" |
| Becoming Dick | Davis Aldrich | Television film |
| Buzz Lightyear of Star Command | Fixer | Voice, Season 1 Episode 11: "The Return of XL"[1] |
| The Wild Thornberrys | Frank Hunter | Voice, Season 3 Episode 20: "The Anniversary"[1] |
| Johnny Bravo | Uncle Lou | Voice, Season 3 Episode 2: "Virtual Johnny/Hunted/Hold That Schmoe"[1] |
| 2001 | Johnny Bravo | Dr. Miller | Voice, Season 3 Episode 17: "The Hansel and Gretel Witch Project/I.Q. Johnny/Get Stinky"[1] |
| Max Steel | Chuck Marshak | Voice, Season 1 Episode 1: "Strangers" |
| Max Steel | Chuck Marshak | Voice, Season 1 Episode 6: "Spear-Carriers" |
| Max Steel | Chuck Marshak | Voice, Season 1 Episode 8: "Sharks" |
| Max Steel | Chuck Marshak | Voice, Season 1 Episode 12: "Scions" |
| The Huntress | Max Quinlin | Season 1 Episode 14: "Generations" |
| Family Guy | Steve Bellows | Voice, Season 3 Episode 4: "One If by Clam, Two If by Sea" |
| Dharma & Greg | Earl Tucker | Season 4 Episode 22: "How This Happened" |
| Curb Your Enthusiasm | Mr. Weiner | Season 2 Episode 6: "The Acupuncturist" |
| The Ellen Show | Santa Claus | Season 1 Episode 11: "Ellen's First Christmas" |
| 3×3 Eyes | Grandpa Ayanokoji | Voice, English dub |
| King of the Hill | Stinky | Voice, Season 5 Episode 10: "Yankee Hankee" |
| 2002 | King of the Hill | Stinky | Voice, Season 6 Episode 11: "Unfortunate Son" |
| John XXIII: The Pope of Peace | Angelo Roncalli | Television film |
| Teamo Supremo | Mr. Large | Voice, Season 2 Episode 5: "Thog the Caveman Returns/Mr. Large's Slippery Scheme" |
| The Man Who Saved Christmas | Charles Gilbert | Television film |
| 2003 | ER | Dr. James McNulty | Season 9 Episode 11: "A Little Help from My Friends" |
| ER | Dr. James McNulty | Season 9 Episode 12: "A Saint in the City" |
| ER | Dr. James McNulty | Season 9 Episode 13: "No Good Deed Goes Unpunished" |
| Grim & Evil | Mr. Voorhees | Voice, Season 1 Episode 9: "Grim for a Day/ChickenBall Z/Max Courage!" |
| Spider-Man: The New Animated Series | Officer Barr | Voice, Season 1 Episode 2: "Keeping Secrets" |
| Spider-Man: The New Animated Series | Officer Barr | Voice, Season 1 Episode 6: "Heroes and Villains" |
| Spider-Man: The New Animated Series | Officer Barr | Voice, Season 1 Episode 8: "Law of the Jungle" |
| Spider-Man: The New Animated Series | Officer Barr | Voice, Season 1 Episode 13: "Mind Games: Part 2" |
| Duck Dodgers | Guard Captain | Voice, Season 1 Episode 5: "I'm Going to Get You Fat Sucker/Detained Duck"[1] |
| National Lampoon's Christmas Vacation 2 | Uncle Nick | Television film |
| 2004 | Justice League Unlimited | Hephaestus | Voice, Season 1 Episode 4: "Hawk and Dove"[1] |
| The Practice | Judge Marcus Winnaker | Season 8 Episode 13: "Going Home" |
| The Practice | Judge Marcus Winnaker | Season 8 Episode 14: "Pre-Trial Blues" |
| The Practice | Judge Marcus Winnaker | Season 8 Episode 15: "Mr. Shore Goes to Town" |
| 2004–2005 | Center of the Universe | Art Barnett | 12 episodes |
| 2005 | Justice League Unlimited | Granny Goodness | Voice, Season 2 Episode 2: "The Ties That Bind"[1] |
| The Dead Zone | Marty Bracknell | Season 4 Episode 10: "Coming Home" |
| The Boondocks | Ed Wuncler Sr. | Voice, Season 1 Episode 1: "The Garden Party" |
| 2006 | The Boondocks | Ed Wuncler Sr. | Voice, Season 1 Episode 10: "The Itis" |
| The Boondocks | Ed Wuncler Sr. | Voice, Season 1 Episode 14: "The Block Is Hot" |
| The Christmas Card | Luke Spellman | Television film |
| W.I.T.C.H. | Napoleon | Voice, Season 2 Episode 21: "U Is for Undivided" |
| W.I.T.C.H. | Napoleon | Voice, Season 2 Episode 23: "W Is for Witch" |
| W.I.T.C.H. | Napoleon | Voice, Season 2 Episode 26: "Z Is for Zenith" |
| Studio 60 on the Sunset Strip | Wilson White | Season 1 Episode 1: "Pilot" |
| Studio 60 on the Sunset Strip | Wilson White | Season 1 Episode 5: "The Long Lead Story" |
| Studio 60 on the Sunset Strip | Wilson White | Season 1 Episode 7: "Nevada Day: Part 1" |
| Studio 60 on the Sunset Strip | Wilson White | Season 1 Episode 8: "Nevada Day: Part 2" |
| Studio 60 on the Sunset Strip | Wilson White | Season 1 Episode 11: "The Christmas Show" |
| 2007 | Studio 60 on the Sunset Strip | Wilson White | Season 1 Episode 12: "Monday" |
| Andy Barker, P.I. | Mickey Doyle | Season 1 Episode 6: "The Lady Varnishes" |
| 2008 | The Spectacular Spider-Man | Uncle Ben Parker | Voice, Season 1 Episode 12: "Intervention"[1] |
| 2009 | Star-ving | Mr. Lipschitz | Season 1 Episode 10: "El Al-Qaeda" |
| The Line | Patrick | Season 1 Episodes 1, 2, 3, 4, 5, 6, 7 |
| CSI: NY | Abraham Klein / Klaus Braun | Season 5 Episode 22: "Yahrzeit" |
| WordGirl | Kid Potato | Voice, Season 2 Episode 16: "Meat My Dad" |
| 2010 | The Boondocks | Ed Wuncler Sr. | Voice, Season 3 Episode 3: "The Red Ball" |
| The Boondocks | Ed Wuncler Sr. | Voice, Season 3 Episode 15: "It's Goin' Down" |
| The Sarah Silverman Program | Commandant Von Reichenstein | Season 3 Episode 10: "Wowschwitz" |
| The Cleveland Show | Editor | Season 1 Episode 14: "The Curious Case of Junior Working at the Stool" |
| The Cleveland Show | Old Man | Season 2 Episode 3: "How Cleveland Got His Groove Back" |
| The Cleveland Show | Carl Fredricksen | Season 2 Episode 8: "Murray Christmas" |
| American Dad! | Grandpa Smith | Season 6 Episode 6: "There Will Be Bad Blood" |
| 2011 | The Cleveland Show | Narrator | Season 2 Episode 15: "The Blue, the Gray and the Brown" |
| The Cleveland Show | Walter | Season 3 Episode 6: "Sex and the Biddy" |
| American Dad! | Mailbox #2 | Season 6 Episode 16: "Jenny Fromdabloc" |
| Young Justice | Kent Nelson | Voice, Season 1 Episode 7: "Denial"[1] |
| Working Class | Hank Greziak | Season 1 Episode 1: "The Buddy System" |
| Working Class | Hank Greziak | Season 1 Episode 4: "Eye for an Eye" |
| Working Class | Hank Greziak | Season 1 Episode 6: "Pay Back" |
| Working Class | Hank Greziak | Season 1 Episode 8: "Wine Pairing" |
| Working Class | Hank Greziak | Season 1 Episode 9: "B-Day Invasion" |
| Working Class | Hank Greziak | Season 1 Episode 11: "Hire Education" |
| Too Big to Fail | Warren Buffett | Television film |
| Royal Pains | Ted Roth | Season 3 Episode 4: "The Shaw/Hank Redemption" |
| Royal Pains | Ted Roth | Season 3 Episode 5: "A Man Called Grandpa" |
| Michael: Every Day | Dr. Wasserman | Season 1 Episode 4: "Sleeping with People" |
| Michael: Every Day | Dr. Wasserman | Season 1 Episode 5: "Bridges" |
| Michael: Every Day | Dr. Wasserman | Season 1 Episode 8: "Being Alone" |
| Michael: Every Day | Dr. Wasserman | Season 1 Episode 10: "Sweating" |
| Michael: Every Day | Dr. Wasserman | Season 1 Episode 11: "Failure" |
| Michael: Every Day | Dr. Wasserman | Season 1 Episode 12: "Endings" |
| 2012 | The Middle | Ben | Season 3 Episode 19: "The Paper Route" |
| Hot in Cleveland | Jameson Lyons | Season 3 Episode 15: "Rubber Ball" |
| Hawaii Five-0 | August March | Season 2 Episode 19: "Kalele (Faith)" |
| Hawaii Five-0 | August March | Season 3 Episode 2: "Kanalua (Doubt)" |
| Home Alone: The Holiday Heist | Mr. Carson | Television film |
| Regular Show | Santa Claus | Voice, Season 4 Episode 9: "The Christmas Special"[1] |
| 2013 | Law & Order: Special Victims Unit | Coach Martin Schultz | Season 14 Episode 13: "Monster's Legacy" |
| Maron | Larry Maron | Unaired pilot |
| The Glades | Dr. Ted Hardy | Season 4 Episode 3: "Killer Barbecue" |
| The Glades | Dr. Ted Hardy | Season 4 Episode 4: "Magic Longworth" |
| The Glades | Dr. Ted Hardy | Season 4 Episode 10: "Gallerinas" |
| The Crazy Ones | Mr. Finger | Season 1 Episode 8: "The Stan Wood Account" |
| Christmas on the Bayou | Papa Noel | Television film |
| 2014 | The Boondocks | Ed Wuncler Sr. | Voice, Season 4 Episode 9: "Stinkmeaner: Begun the Clone War Has" |
| Men at Work | Bob | Season 3 Episode 5: "Gigo-Milo" |
| Mom | Jack Bumgartner | Season 2 Episode 5: "Kimchi and a Monkey Playing Harmonica" |
| Chasing Life | Artie Carver | Season 1 Episode 11: "Locks of Love" |
| Chozen | Lil' Wheely | Episode: "Sell, Sell, Sell" (Unaired) |
| Elf: Buddy's Musical Christmas | Santa Claus | Voice, television special[1] |
| 2015 | The Good Wife | Guy Redmayne | Season 6 Episode 13: "Dark Money" |
| The Good Wife | Guy Redmayne | Season 6 Episode 17: "Undisclosed Recipients" |
| Criminal Minds | Roy Brooks | Season 10 Episode 20: "A Place at the Table" |
| Murdoch Mysteries | Kris Kringle | Season 9 Episode: "A Merry Murdoch Christmas" |
| WordGirl | Kid Potato | Voice, Season 7 Episode 8: "My Dad, My Teacher, My Dad, My Teacher/Castle! Dungeon! Fortress! So?" |
| All of My Heart | Vern | Television film |
| Forgive Me | Bishop | Season 2 Episode 16: "Blessed Art Thou" |
| Forgive Me | Bishop | Season 2 Episode 18: "Blessed Is the Fruit" |
| 2016 | SpongeBob SquarePants | Angry Old Timer | Voice, Season 10 Episode 1: "Whirly Brains" |
| 2017 | Michael: Every Day | Dr. Wasserman | Season 2 Episode 6: "Hodophobia: Part 2" |
| Bones | Rufus Tucker | Season 12 Episode 3: "The New Tricks in the Old Dogs" |
| A StoryBots Christmas | Santa | Television special |
| All of My Heart: Inn Love | Vern | Television film |
| Titanic: Sinking the Myths | Wilhelm Müller | Documentary |
| 2018 | Forgive Me | Bishop | Season 3 Episode 2: "I Detest All My Sins Because of Your Just Punishments" |
| Forgive Me | Bishop | Season 3 Episode 3: "Most of All Because They Offend You" |
| Forgive Me | Bishop | Season 3 Episode 5: "Worthy of All My Love" |
| Forgive Me | Bishop | Season 3 Episode 8: "To Avoid the Near Occasion of Sin" |
| MacGyver | Saul | Season 2 Episode 20: "Skyscraper - Power" |
| All of My Heart: The Wedding | Vern | Television film |
| Cobra Kai | Sid Weinberg | Season 1 Episode 1: "Ace Degenerate" |
| Cobra Kai | Sid Weinberg | Season 1 Episode 8: "Molting" |
| 2019 | American Dad! | TV Guide Editor-in-Chief | Season 14 Episode 4: "Rabbit Ears" |
| American Dad! | Narrator | Season 14 Episode 6: "Lost Boys" |
| Dead to Me | Abe Rifkin | Season 1 Episode 1: "Pilot" |
| Dead to Me | Abe Rifkin | Season 1 Episode 2: "Maybe I'm Crazy" |
| Dead to Me | Abe Rifkin | Season 1 Episode 3: "It's All My Fault" |
| Dead to Me | Abe Rifkin | Season 1 Episode 7: "I Can Handle It" |
| Dead to Me | Abe Rifkin | Season 1 Episode 9: "I Have to Be Honest" |
| Doom Patrol | Hospital Patient | Season 1 Episode 13: "Flex Patrol" |
| Grace and Frankie | Howard Jay | Season 5 Episode 9: "The Website" |
| 2020 | Modern Family | Herschel Braverman | Season 11 Episode 12: "Dead on a Rival" |
| Ballmastrz: 9009 | Rupert T. Digzfield IV | Voice, Season 2 Episode 10: "Onward, True Blue Friends Win Eternal; Paladin of the Heavens, Start Today!" |
| Blue Bloods | Chuck Kennedy | Season 10 Episode 15: "Vested Interests" |
| Briarpatch | James Staghorne Sr. | Season 1 Episode 3: "Terrible, Shocking Things" |
| Briarpatch | James Staghorne Sr. | Season 1 Episode 5: "Behind God's Back" |
| Briarpatch | James Staghorne Sr. | Season 1 Episode 7: "Butterscotch" |
| Royalties | Papa / Hal | Season 1 Episode 2: "Break It In" |
| Teen Titans Go! | Sergeant Mike Cosgrove | Voice, Season 6 Episode 33: "Huggbees"[1] |
| Central Park | Ambrose Brandenham | Voice, Season 1 Episode 7: "Squirrel, Interrupted" |
| 2021 | Central Park | Ambrose Brandenham | Voice, Season 2 Episode 4: "Of Course You Know This Means Ward" |
| Cobra Kai | Sid Weinberg | Season 3 Episode 3: "Now You're Gonna Pay" |
| Grace and Frankie | Howard Jay | Season 7 Episode 4: "The Circumcision" |
| Let's Be Real | Ed Asner | Episode: "Episode 101" |
| Dug Days | Carl Fredricksen | Voice; Disney+ Original Short Series, posthumous release; dedicated in memory[1] |
| The Premise | Mr. Holmes | Season 1 Episode 3: "The Ballad of Jesse Wheeler"; posthumous release |
| Muppets Haunted Mansion | Claude | Television special, posthumous release; dedicated in memory |
| Captain Daddy | Grandpa | Television film; posthumous release |
| 2022 | Central Park | Ambrose Brandenham | Voice, Season 2 Episode 16: "The Lyin' in Winter" (episode released posthumously) |
| Voice, Season 3 Episode 6: "A Matter of Life and Boeuf" (episode released posthumously) |
| TBA | Scarlett | Lou | Television film; posthumous release |
