| Title | Year | Status | Character |
|---|
| Off the Beach | 2013 | Short | Ernie Thompson |
| Mini Adventures of Winnie the Pooh | 2011 | TV Series short | Gopher |
| Cartoon Network Racing | 2006 | Video Game | Flem (voice) |
| The Wild Thornberrys | 1999 | TV Series | Lion #1 / Zebra |
| Cow and Chicken | 1997-1999 | TV Series | Flem / Goon / P.A. Voice / ... |
| I Am Weasel | 1999 | TV Series | Flem |
| Breakfast with Einstein | 1998 | TV Movie | |
| The Wonderful Ice Cream Suit | 1998 | | Leo |
| Ask Harriet | 1998 | TV Series | The Sandwich Guy |
| Lasting Silents | 1997 | | Julius Davis |
| Baywatch | 1996-1997 | TV Series | Jigger / Arthur |
| Duckman: Private Dick/Family Man | 1996 | TV Series | Ernest T. Glob |
| It Came from Outer Space II | 1996 | TV Movie | Ben Cully |
| Garfield and Friends | 1988-1994 | TV Series | Wade Duck / Wart / Worm / ... |
| A Flintstones Christmas Carol | 1994 | TV Movie | Additional Voices (voice) |
| Hollyrock-a-Bye Baby | 1993 | TV Movie | Bird (voice) |
| I Yabba-Dabba Do! | 1993 | TV Movie | Additional Voices (voice, as Howie Morris) |
| Sesame Street | 1986-1993 | TV Series | Jughead Jones |
| Daddy Dearest | 1993 | TV Series | Old Man |
| Tom and Jerry: The Movie | 1992 | | Squawk (voice) |
| The Nudnik Show | 1991 | TV Series | |
| Yo Yogi! | 1991 | TV Series | Murray |
| Life Stinks | 1991 | | Sailor |
| TaleSpin | 1991 | TV Series | King Amok |
| Midnight Patrol: Adventures in the Dream Zone | 1990 | TV Series | |
| Head of the Class | 1990 | TV Series | |
| Wake, Rattle & Roll | 1990 | TV Series | Unconfirmed (1990) |
| Gravedale High | 1990 | TV Series voice | |
| Chip 'n' Dale Rescue Rangers | 1990 | TV Series | Maltese de Sade |
| The Adventures of Ronald McDonald: McTreasure Island | 1990 | Video short | Hamburglar / Ben Gunn (voice) |
| DuckTales | 1987-1989 | TV Series | Dr. Von Swine / Happy Jack / Djinni / ... |
| Transylvania Twist | 1989 | | Marinas Orlock |
| Police Academy: The Series | 1988-1989 | TV Series | Carl Sweetchuck / The Professor |
| Murder, She Wrote | 1989 | TV Series | Uncle Ziggy |
| Superman | 1988 | TV Series | Prankster / Oswald Loomis |
| The Good, the Bad, and Huckleberry Hound | 1988 | TV Movie | Chuckling Chipmunk / Goldminer / Dentist / ... (voice) |
| Little Clowns of Happytown | 1987 | TV Series 1987 voice | |
| Bionic Six | 1987 | TV Series | Dr. Hugo Fish / Techno Tex / Hunter / ... |
| The Jetsons | 1962-1987 | TV Series | Harlan / Montique Jetson / Mr. Tweeter / ... |
| Adventures of the Gummi Bears | 1987 | TV Series | Sir Paunch |
| End of the Line | 1987 | | Hobo |
| Galaxy High School | 1986 | TV Series | Professor Icenstein / Luigi La Bounci |
| Return to Mayberry | 1986 | TV Movie | Ernest T. Bass |
| The 13 Ghosts of Scooby-Doo | 1985 | TV Series | Bogel / Platypus Duck |
| Star Fairies | 1985 | TV Movie | Dragon Head #1 (voice) |
| Paw Paws | 1985 | TV Series | Trembly Paw (voice) |
| Sweet Sea | 1985 | TV Movie voice | |
| The Love Boat | 1984 | TV Series | Billy Banks |
| Splash | 1984 | | Dr. Zidell |
| The Yellow Rose | 1984 | TV Series | Johnny Hogan |
| Trapper John, M.D. | 1982-1984 | TV Series | Dr. Jerry Hannigan / Dr. Hannigan / Dr. Kauffman |
| Deck the Halls with Wacky Walls | 1983 | TV Movie | Crazy Legs (voice) |
| Alvin & the Chipmunks | 1983 | TV Series | |
| Fantasy Island | 1980-1983 | TV Series | Walter Dunlap / Herman Dodge |
| Portrait of a Showgirl | 1982 | TV Movie | Wally Gordon |
| ABC Weekend Specials | 1979-1982 | TV Series | Chester / Stockboy / Hank |
| History of the World: Part I | 1981 | | Court Spokesman - The Roman Empire |
| The Munsters' Revenge | 1981 | TV Movie | Igor |
| Legends of the Superheroes | 1979 | TV Series | Dr. Sivana |
| Archie's Bang-Shang Lalapalooza Show | 1978 | TV Series | Jughead / Big Moose / Pops / ... (voice) |
| The New Archie/Sabrina Hour | 1977 | TV Series | Jughead Jones / Big Moose / Dilton Doiley (voice) |
| High Anxiety | 1977 | | Professor Lilloman |
| Space Academy | 1977 | TV Series | Captain Rampo |
| Sabrina, Super Witch | 1977 | TV Series | Harvey Kinkle (voice) |
| Blansky's Beauties | 1977 | TV Series | Cactus Phil |
| The Many Adventures of Winnie the Pooh | 1977 | | Gopher (voice) |
| The Bob Newhart Show | 1976 | TV Series | Shorty Vance |
| The Ghost Busters | 1975 | TV Series | The Red Baron |
| The Secret Lives of Waldo Kitty | 1975 | TV Series | Waldo Kitty / Wetzel / Lone Kitty / ... (voice) |
| The U.S. Of Archie | 1974 | TV Series | Jughead Jones / Big Moose / Dilton Doiley |
| Mission: Magic! | 1973 | TV Series | Socks / Vinnie / Mr. Samuels |
| My Favorite Martians | 1973 | TV Series | Tim O'Hara / Bill Brennan / Tiny / ... (voice) |
| Ten from Your Show of Shows | 1973 | | |
| The ABC Saturday Superstar Movie | 1972 | TV Series | Franklin 'Frankie' Frankenstein / Wolfgang 'Wolfie' Wolfman / Orville / ... |
| Love, American Style | 1971 | TV Series segment "Love and the Plumber" - Love and the College Professor/Love and the Eyewitness/Love and the Lady Barber/Love and the Plumber 1971 ... segment "Love and the Plumber" | |
| Archie's TV Funnies | 1971 | TV Series | Jughead Jones / Hot Dog (voice) |
| Sabrina, the Teenage Witch | 1971 | TV Series | Cousin Ambrose |
| Sabrina and the Groovie Goolies | 1970 | TV Series | Frankie / Wolfie / Dr. Jekyll / ... |
| Will the Real Jerry Lewis Please Sit Down | 1970 | TV Series | |
| The Comic | 1969 | | Pedestrian Gag Man in Love Honor and Oh Boy (uncredited) |
| Don't Drink the Water | 1969 | | Getaway Pilot (uncredited) |
| Archie and His New Pals | 1969 | TV Movie | Jughead Jones (voice) |
| The Archie Comedy Hour | 1969 | TV Series | Jughead Jones / Big Moose / Dilton Doiley (voice) |
| Winnie the Pooh and the Blustery Day | 1968 | Short | Gopher (voice) |
| Archie's Funhouse | 1968 | TV Series | Jughead Jones / Big Moose / Dilton Doiley / ... |
| The Archie Show | 1968 | TV Series | Jughead Jones / Big Moose / Dilton Doiley |
| With Six You Get Eggroll | 1968 | | Hippie in Police Station (uncredited) |
| The Atom Ant/Secret Squirrel Show | 1967 | TV Series | Atom Ant (1967-1968) (voice) |
| Insight | 1967 | TV Series | Splinner |
| The Big Mouth | 1967 | | Cameo Role (uncredited) |
| Hey, Landlord | 1967 | TV Series | |
| Way... Way Out | 1966 | | Schmidlap |
| The Atom Ant Show | 1965-1966 | TV Series | Atom Ant |
| Alice in Wonderland or What's a Nice Kid Like You Doing in a Place Like This? | 1966 | TV Movie | The White Rabbit (voice) |
| Alice of Wonderland in Paris | 1966 | | The Frowning Prince / King (segment "The Frowning Prince") / Grand Wizard (voice) |
| Winnie the Pooh and the Honey Tree | 1966 | Short | Gopher (voice) |
| The Magilla Gorilla Show | 1964-1965 | TV Series | Mr. Peebles |
| The Peter Potamus Show | 1964-1965 | TV Series | Breezly Bruin |
| The Secret Squirrel Show | 1965 | TV Series | Additional Voices |
| The Andy Griffith Show | 1963-1965 | TV Series | Ernest T. Bass / George, the TV repairman / Leonard Blush / ... |
| The Lucy Show | 1965 | TV Series | Howard Coe |
| Fluffy | 1965 | | Sweeney |
| The Famous Adventures of Mr. Magoo | 1965 | TV Series | Egeus / Peter Quince / Demetrius / ... |
| The Flintstones | 1962-1965 | TV Series | Bird / Monkey / Announcer / ... |
| The Huffless, Puffless, Dragon | 1964 | Short voice | |
| Make Room for Daddy | 1964 | TV Series | Sean |
| Habit Rabbit | 1963 | Short | Raymond (voice) |
| The Dick Van Dyke Show | 1963 | TV Series | Mr. Holdecker |
| The Nutty Professor | 1963 | | Mr. Elmer Kelp |
| Alcoa Premiere | 1963 | TV Series | Willy Longo |
| Twilight Zone | 1963 | TV Series | George P. Hanley |
| Ensign O'Toole | 1963 | TV Series | Delacroix |
| Beetle Bailey | 1963 | TV Series | Beetle Bailey / Gen. Halftrack / Lt. Fuzz |
| 40 Pounds of Trouble | 1962 | | Julius |
| Et Tu Otto | 1962 | Short | Beetle Bailey (uncredited) |
| A Tree Is a Tree Is a Tree? | 1962 | Short | Beetle Bailey (voice, uncredited) |
| Boys' Night Out | 1962 | | Howard McIllenny |
| Alfred Hitchcock Presents | 1962 | TV Series | Dave Sumner |
| Psychological Testing | 1962 | Short | Beetle Bailey (uncredited) |
| Thriller | 1962 | TV Series | Myron Sills / Dr. Wilfred Bliss |
| The Beachcomber | 1962 | TV Series | Melvin M. Murney |
| Home Sweet Swampy | 1962 | Short | Beetle Bailey (voice, uncredited) |
| Stop Driving Us Crazy | 1961 | Short | Rusty / Additional Characters (voice) |
| Munro | 1961 | Short | Narrator / General / Soldiers (voice) |
| Wanted: Dead or Alive | 1961 | TV Series | Clayton Armstrong |
| The Dinah Shore Chevy Show | 1959 | TV Series | |
| The DuPont Show of the Month | 1958 | TV Series | Wu Fang |
| The Patrice Munsel Show | 1958 | TV Series | Dr. Vom Schmekker |
| Kraft Theatre | 1958 | TV Series | Pigeon |
| Twelfth Night | 1957/II | TV Movie | Feste, the clown |
| Caesar's Hour | 1955-1957 | TV Series | |
| The Admiral Broadway Revue | 1949 | TV Series | Resturant Man |
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