| Title | Year | Status | Character |
|---|
| Pixie and Dixie and Mr. Jinks | 1958 | TV Series | Pixie (voice) |
| The Adventures of Spunky and Tadpole | 1958 | TV Series | Tadpole |
| The Adventures of Patches | 1951 | TV Series | Patches |
| The Real Adventures of Jonny Quest | 1996 | TV Series | Dr. Benton C. Quest |
| The House of Tomorrow | 1949 | Short | Narrator - Pressure Cooker Blackout (voice, uncredited) |
| Jonny Quest Versus the Cyber Insects | 1995 | TV Movie | Dr. Benton C. Quest (voice) |
| Freakazoid! | 1995 | TV Series | Dr. Vernon Danger |
| Tiny Toons' Night Ghoulery | 1995 | TV Movie | Hamton J. Pig / TV Executive (voice) |
| 2 Stupid Dogs | 1995 | TV Series | Corporal |
| Scooby-Doo Mystery | 1995 | Video Game | Scooby-Doo (voice) |
| The Flintstones: Wacky Inventions | 1994 | Video short | Bamm-Bamm Rubble (voice) |
| Garfield and Friends | 1993-1994 | TV Series | Ludlow |
| A Flintstones Christmas Carol | 1994 | TV Movie | Bamm-Bamm Rubble
Joe Rockhead (voice) |
| Scooby-Doo in Arabian Nights | 1994 | TV Movie | Scooby-Doo
Boo Boo (voice) |
| Yogi the Easter Bear | 1994 | TV Movie | Boo Boo
Ranger Smith (voice) |
| Tiny Toons Spring Break | 1994 | TV Movie | Hamton J. Pig (voice) |
| Hollyrock-a-Bye Baby | 1993 | TV Movie | Baby Bamm-Bamm / Lot Security Guard / Tour Bus Driver (voice) |
| Bonkers | 1993 | TV Series | Mayor |
| Droopy: Master Detective | -1993 | TV Series | Droopy |
| Tom & Jerry Kids Show | 1990-1993 | TV Series | Droopy |
| Jonny's Golden Quest | 1993 | TV Movie | Dr. Benton C. Quest / Bandit (voice) |
| I Yabba-Dabba Do! | 1993 | TV Movie | Policeman (voice) |
| The Plucky Duck Show | 1992 | TV Series | Hamton
Hamton Pig
Hamton J. Pig
... |
| Tiny Toon Adventures | 1990-1992 | TV Series | Hamton J. Pig
Announcer
Decoy
... |
| Tom and Jerry: The Movie | 1992 | | Droopy (voice) |
| King's Quest VI: Heir Today, Gone Tomorrow | 1992 | Video Game | Ali / Gnomes (voice) |
| Tiny Toon Adventures: How I Spent My Vacation | 1992 | Video | Hamton J. Pig / Radio Announcer (voice) |
| Yo Yogi! | 1991-1992 | TV Series | Boo Boo
Muttley
Atom Ant
... |
| The Last Halloween | 1991 | TV Short | Romtu (voice) |
| A Pup Named Scooby-Doo | 1988-1991 | TV Series | Scooby-Doo / Reporter / Mr. Boo / ... |
| Bobby's World | 1991 | TV Series | |
| Wake, Rattle & Roll | 1990 | TV Series | Muttley
Boo Boo Bear
Pixie
... (voice) |
| The Adventures of Don Coyote and Sancho Panda | 1990 | TV Series | Sancho Panda |
| Jetsons: The Movie | 1990 | | Astro (voice) |
| The Funtastic World of Hanna-Barbera | 1990 | Short | Boo-Boo
Muttley
Scooby-Doo (voice) |
| Cartoon All-Stars to the Rescue | 1990 | TV Short | Papa Smurf (voice) |
| The Smurfs | 1981-1989 | TV Series | Papa Smurf
Azrael
Dreamy Smurf
... |
| Fantastic Max | 1988-1989 | TV Series | Additional Voices |
| Who Shrunk Saturday Morning? | 1989 | TV Movie | Papa Smurf (voice) |
| Animal Follies | 1988 | Video | Ruff (voice) |
| The New Yogi Bear Show | 1988 | TV Series | Boo Boo
Ranger Smith |
| Scooby-Doo and the Reluctant Werewolf | 1988 | TV Movie | Scooby-Doo
Scrappy-Doo (voice) |
| Yogi & the Invasion of the Space Bears | 1988 | TV Movie | Boo Boo
Ranger Smith (voice) |
| Yogi's Treasure Hunt | 1985-1988 | TV Series | Muttley
Ranger Smith
Boo Boo
... |
| The Good, the Bad, and Huckleberry Hound | 1988 | TV Movie | Boo Boo / Narrator (voice) |
| Scooby-Doo and the Ghoul School | 1988 | TV Movie | Scooby-Doo
Scrappy-Doo (voice) |
| Rockin' with Judy Jetson | 1988 | TV Movie | Astro (voice) |
| DuckTales | 1987 | TV Series | Scrooge's Father |
| Pound Puppies | 1986-1987 | TV Series | Red Alert Pup
Scooby-Doo |
| 'Tis the Season to Be Smurfy | 1987 | TV Movie | Papa Smurf / Chitter (voice) |
| Foofur | 1986-1987 | TV Series | Pepe |
| Yogi Bear and the Magical Flight of the Spruce Goose | 1987 | TV Movie | Boo Boo / Mumbly (voice) |
| The Jetsons | 1962-1987 | TV Series | Astro
R.U.D.I.
R.U.D.I
... |
| The Real Ghostbusters | 1987 | TV Series | Walt Fleischman |
| Popeye and Son | 1987 | TV Series | Eugene the Jeep |
| The Jetsons Meet the Flintstones | 1987 | TV Movie | Astro
R.U.D.I
Mac
... (voice) |
| Yogi's Great Escape | 1987 | TV Movie | Boo Boo
Ranger Smith (voice) |
| Scooby-Doo Meets the Boo Brothers | 1987 | TV Movie | Scooby-Doo
Scrappy-Doo
Hound (voice) |
| Jonny Quest | 1986-1987 | TV Series | Dr. Benton C. Quest
Bandit |
| Milroy: Santa's Misfit Mutt | 1987 | Video short | Milroy (voice) |
| The Glo Friends | 1986 | TV Series | Glo Snail (1986) (voice) |
| Smurfquest | 1986 | TV Movie | Papa Smurf / Azrael the cat (voice) |
| The Transformers: The Movie | 1986 | | Gears (voice, scenes deleted) |
| Paw Paws | 1985-1986 | TV Series | PaPooch |
| The Transformers | 1984-1986 | TV Series | Ratchet
Gears
Scavenger
... |
| Galtar and the Golden Lance | 1985 | TV Series | Pandat |
| Scooby's Mystery Funhouse | 1985 | TV Series | Scooby Doo (voice) |
| The 13 Ghosts of Scooby-Doo | 1985 | TV Series | Scooby-Doo
Scrappy-Doo
Mumsy Doo
... |
| G.I. Joe | 1985 | TV Series | Professor |
| Star Fairies | 1985 | TV Movie | Blunderpuff / Elf (voice) |
| The Pound Puppies | 1985 | TV Movie | Louie / Itchy (voice) |
| Laugh Busters | 1984 | TV Movie | Papa Smurf (voice) |
| Pink Panther and Sons | 1984 | TV Series | Additional Voices |
| The Get Along Gang | 1984 | TV Series | Officer Growler
Mr. Hoofnagel
Police Dispatcher
... |
| The New Scooby-Doo Mysteries | 1984 | TV Series | Scooby-Doo
Scrappy-Doo
Dada-Doo
... |
| The Mighty Orbots | 1984 | TV Series | Crunch / Rondu (voice) |
| The Duck Factory | 1984 | TV Series | Wally Wooster |
| Here Are the Smurfs | 1984 | TV Movie | Papa Smurf (voice) |
| Saturday Supercade | 1983 | TV Series | Additional Voices |
| The New Scooby and Scrappy-Doo Show | 1983 | TV Series | Scooby-Doo
Scrappy-Doo |
| CBS Library | 1983 | TV Series | |
| The Smurfic Games | 1983 | TV Movie | Papa Smurf
Azrael (voice) |
| Jokebook | 1982 | TV Series 1982 voice | |
| Yogi Bear's All-Star Comedy Christmas Caper | 1982 | TV Movie | Boo Boo Bear
Ranger Smith
Pixie (voice) |
| The Smurfs Christmas Special | 1982 | TV Movie | Papa Smurf / Azrael the Cat (voice) |
| The Last Unicorn | 1982 | | The Cat (voice) |
| The Scooby and Scrappy-Doo Puppy Hour | 1982 | TV Series | Scooby-Doo (voice) |
| Pac Preview Party | 1982 | TV Movie | Scooby-Doo / Scrappy-Doo (voice) |
| The Flight of Dragons | 1982 | Video | Giles of the Treetops
Lo Tae Zhao (voice) |
| The Smurfs Springtime Special | 1982 | TV Short | Papa Smurf
Azrael (voice) |
| Spider-Man | 1982 | TV Series | Vulture |
| My Smurfy Valentine | 1982 | TV Movie | Papa Smurf
Azrael (voice) |
| The Kwicky Koala Show | 1981 | TV Series | Rawhide Clyde / Clyde |
| Trollkins | 1981 | TV Series | Additional Voices |
| The Fonz and the Happy Days Gang | 1980-1981 | TV Series | Additional Voices |
| Space Stars | 1981 | TV Series | Astro / Gloop / Gleep |
| The Flintstones: Wind-Up Wilma | 1981 | TV Short | Announcer (voice) |
| Drak Pack | 1980 | TV Series | Toad / Fly |
| Yogi's First Christmas | 1980 | TV Movie | Boo Boo
Ranger Smith
Herman the Hermit (voice) |
| The Flintstone Comedy Show | 1980 | TV Series | Schleprock |
| The Flintstones: Fred's Final Fling | 1980 | TV Short | Doctor / Fish #1 / Fish #2 / ... (voice) |
| Heathcliff | 1980 | TV Series | Mr. Post (1981-1982) (voice) |
| The Flintstones' New Neighbors | 1980 | TV Short | Bamm-Bamm Rubble / Vulture (voice) |
| Captain Caveman and the Teen Angels | 1977-1980 | TV Series | Additional Voices / Air Control Operator / Ranger John Deerhorn / ... |
| The Return of the King | 1980 | TV Movie | King Theoden
Easterling
The Mouth of Sauron (voice) |
| Pontoffel Pock, Where Are You? | 1980 | TV Short | Humboldt (voice) |
| Scooby-Doo and Scrappy-Doo | 1979-1980 | TV Series | Scooby-Doo / Harris / Sherrif / ... |
| The Plastic Man Comedy/Adventure Show | 1979 | TV Series | The Clam / Computerhead / Solex (1979) (voice) |
| Scooby-Doo Goes Hollywood | 1979 | TV Movie | Scooby-Doo (voice) |
| Casper's First Christmas | 1979 | TV Movie | Boo Boo (voice) |
| Jack Frost | 1979 | TV Movie | Snip (voice) |
| Fred and Barney Meet the Shmoo | 1979 | TV Series | Bamm-Bamm Rubble (voice) |
| Godzilla | 1978-1979 | TV Series | Godzooky |
| Gulliver's Travels | 1979 | TV Movie voice | |
| The Super Globetrotters | 1979 | TV Series | Time Lord |
| The Flintstones Meet Rockula and Frankenstone | 1979 | TV Movie | Igor (voice) |
| Fred and Barney Meet the Thing | 1979 | TV Series | Bamm-Bamm Rubble (voice) |
| Rudolph and Frosty's Christmas in July | 1979 | TV Movie | Sam Spangles (voice) |
| ABC Weekend Specials | 1979 | TV Series | |
| The New Fred and Barney Show | 1979 | TV Series | Bamm-Bamm Rubble (voice, as Donald Messick) |
| Cantinflas | 1979 | TV Series | |
| Challenge of the Superfriends | 1978 | TV Series | Scarecrow / Rabbit / Vartoo / ... |
| The Fantastic Four | 1978 | TV Series | J.J. Colossal |
| The Scooby-Doo/Dynomutt Hour | 1976-1978 | TV Series | Scooby-Doo / Antonio / Mario / ... |
| Yogi's Space Race | 1978 | TV Series | |
| Libra | 1978 | Short | Abacus |
| The Hanna-Barbera Happy Hour | 1978 | TV Series | |
| The Flintstones Little Big League | 1978 | TV Movie voice | |
| All-Star Comedy Ice Revue | 1978 | TV Movie | Snorky / Scooby-Doo (voice) |
| Dinky Dog | 1978 | TV Series | Additional Voices |
| Fred Flintstone and Friends | 1977 | TV Series voice | |
| Scooby's Laff-A Lympics | 1977 | TV Series | Announcer / Scooby-Doo / Mumbly / ... (voice) |
| A Flintstone Christmas | 1977 | TV Movie | Additional Voices (voice) |
| Nestor, the Long-Eared Christmas Donkey | 1977 | TV Short voice | |
| The Hobbit | 1977 | TV Movie | Balin
Tom - Troll #3
Goblin
... (voice) |
| C B Bears | 1977 | TV Series | Clyde The Ape (voice) |
| The Skatebirds | 1977 | TV Series | Scooter Penguin (voice) |
| Kaptain Kool and the Kongs Present ABC All-Star Saturday | 1977 | TV Movie | Scooby-Doo (voice) |
| Rudolph's Shiny New Year | 1976 | TV Movie | Papa Bear
Rumpelstiltskin
Prince Charming
... (voice) |
| Dynomutt Dog Wonder | 1976 | TV Series | Scooby-Doo / Mumbly / The Gimmick / ... (voice) |
| Jabberjaw | 1976 | TV Series | Additional Voices |
| The Mumbly Cartoon Show | 1976 | TV Series | Lt. Mumbly (voice) |
| The First Easter Rabbit | 1976 | TV Movie | Whiskers / Jonathan (voice) |
| Freedom Is | 1976 | TV Movie voice | |
| The First Christmas: The Story of the First Christmas Snow | 1975 | TV Short voice | |
| The New Tom & Jerry Show | 1975 | TV Series | Mumbly (voice) |
| The Oddball Couple | 1975 | TV Series | Additional voices (voice) |
| Hong Kong Phooey | 1974 | TV Series | Spot / Honcho / The Mystery Maverick |
| Wheelie and the Chopper Bunch | 1974 | TV Series | Scrambles / Deputy Fishtail |
| These Are the Days | 1974 | TV Series voice | |
| The City That Forgot About Christmas | 1974 | TV Short voice | |
| Yogi's Gang | 1973 | TV Series | Boo Boo Bear
Temper
Squiddly Diddly
... |
| Inch High, Private Eye | 1973 | TV Series | Braveheart |
| The New Scooby-Doo Movies | 1972-1973 | TV Series | Scooby-Doo / Mr. Franklin / Professor Flakey / ... |
| Bailey's Comets | 1973 | TV Series | Gabby |
| Jeannie | 1973 | TV Series voice | |
| The ABC Saturday Superstar Movie | 1972-1973 | TV Series | Pastry Cook / House Agent / Midget / ... |
| The Addams Family | 1973 | TV Series voice | |
| Charlotte's Web | 1973 | | Jeffrey (voice) |
| Josie and the Pussy Cats in Outer Space | 1972 | TV Series | Bleep / Sebastian |
| The Amazing Chan and the Chan Clan | 1972 | TV Series | Chu-Chu
Chu Chu |
| A Christmas Story | 1972 | TV Movie voice | |
| The Houndcats | 1972 | TV Series | |
| Wait Till Your Father Gets Home | 1972 | TV Series | |
| The Thanksgiving That Almost Wasn't | 1972 | TV Movie voice | |
| The Barkleys | 1972 | TV Series | |
| The Flintstone Comedy Hour | 1972 | TV Series | Schleprock (1972) (voice) |
| Diamonds Are Forever | 1971 | | Announcer at Circus Circus (uncredited) |
| Harlem Globe Trotters | 1971 | TV Series | |
| Help!... It's the Hair Bear Bunch! | 1971 | TV Series voice | |
| Curiosity Shop | 1971 | TV Series voice | |
| The Andromeda Strain | 1971 | | Alarm Voice (uncredited) |
| Josie and the Pussycats | 1970-1971 | TV Series | Sebastian the Cat |
| Sabrina, the Teenage Witch | 1971 | TV Series | Harvey Kinkle |
| The Pebbles and Bamm-Bamm Show | 1971 | TV Series | Schleprock |
| The Wizard of Id | 1970 | | The Wizard / Robbing Hood (voice) |
| Doctor Dolittle | 1970 | TV Series | Various Animals |
| Tales of Washington Irving | 1970 | TV Movie voice | |
| Scooby Doo, Where Are You! | 1969-1970 | TV Series | Scooby Doo |
| Sabrina and the Groovie Goolies | 1970 | TV Series | Cousin Ambrose
Harvey Kinkle |
| Where's Huddles? | 1970 | TV Series | Fumbles / Beverly / Sales Clerk / ... |
| Pufnstuf | 1970 | | Freddy the Flute
Googy Gopher
Orson Vulture (voice) |
| The Perils of Penelope Pitstop | 1969-1970 | TV Series | Dum Dum / Zippy / Snoozy |
| Dastardly and Muttley in Their Flying Machines | 1969-1970 | TV Series | Muttley / Zilly / Klunk / ... |
| B.C. - The Shadow | 1970 | Short voice | |
| Christmas Is | 1970 | TV Movie voice | |
| Archie and His New Pals | 1969 | TV Movie | Harvey Kinkle
Cousin Ambrose (voice) |
| The Archie Comedy Hour | 1969 | TV Series | Harvey Kinkle
Cousin Ambrose (1969-1970) (voice) |
| Cattanooga Cats | 1969 | TV Series | Hoppy / Smirky (voice) |
| The Adventures of Gulliver | 1968-1969 | TV Series | Eager / Tagg / Tag |
| Wacky Races | 1968-1969 | TV Series | Muttley
Professor Pat Pending
Sawtooth
... |
| The Banana Splits Adventure Hour | 1969 | TV Series | Snork
Prof. Carter
Aramis
... |
| The New Adventures of Huckleberry Finn | 1968 | TV Series | Tug |
| La Feet's Defeat | 1968 | Short | Sergeant Deux-Deux (voice) |
| The Atom Ant/Secret Squirrel Show | 1967 | TV Series | Atom Ant / Shag Rugg / Precious Pupp (1967-1968) (voice) |
| The Herculoids | 1967 | TV Series | Gloop, Gleep |
| Fantastic Four | 1967 | TV Series | Kirgo |
| Abbott & Costello | 1967 | TV Series | Additional Voices (1967) (voice) |
| Moby Dick and the Mighty Mightor | 1967 | TV Series | Scooby the Seal (voice) |
| Super President | 1967 | TV Series voice | |
| Off to See the Wizard | 1967 | TV Series voice | |
| Jack and the Beanstalk | 1967 | TV Movie | Cat / Mice (voice, uncredited) |
| Birdman | 1967 | TV Series | Falcon 7
Various
Vulturo
... |
| Shazzan | 1967 | TV Series | Kaboobie |
| Space Ghost | 1966 | TV Series | Blip
Bronto
Zorak |
| A Laurel and Hardy Cartoon | 1966 | TV Series | Various Characters |
| The Atom Ant Show | 1965-1966 | TV Series | Atom Ant / Shag Rugg / Precious Pupp |
| Frankenstein, Jr. and the Impossibles | 1966 | TV Series | Multi Man (voice) |
| The Space Kidettes | 1966 | TV Series | Countdown / Pup Star (voice) |
| The Man Called Flintstone | 1966 | | Additional voices (voice) |
| The Flintstones | 1961-1966 | TV Series | Bamm-Bamm Rubble / Hoppy / Arnold / ... |
| Alice in Wonderland or What's a Nice Kid Like You Doing in a Place Like This? | 1966 | TV Movie | The Dormouse / Fluff (voice) |
| The Magilla Gorilla Show | 1964-1965 | TV Series | Mr. Peebles / Aliens |
| The Peter Potamus Show | 1964-1965 | TV Series | So-So |
| The Secret Squirrel Show | 1965 | TV Series | Additional Voices |
| Pork Chop Phooey | 1965 | Short voice | |
| Jonny Quest | 1964-1965 | TV Series | Bandit
Dr. Benton C. Quest
Intercom Voice
... |
| Valentine's Day | 1964 | TV Series | Radio Announcer |
| The Famous Adventures of Mr. Magoo | 1964 | TV Series voice | |
| Hey There, It's Yogi Bear | 1964 | | Boo-Boo Bear
Ranger John Smith (voice) |
| Elephantastic | 1964 | Short | Safari Hunter (voice) |
| Raggedy Rug | 1964 | Short voice | |
| Crook Who Cried Wolf | 1963 | Short voice | |
| Drum-Sticked | 1963 | Short voice | |
| Not in Nottingham | 1963 | Short voice | |
| Wally Gator | 1963 | TV Series | Mr. Twiddle |
| Wolf in Sheep Dog's Clothing | 1963 | Short voice | |
| Sheep Stealers Anonymous | 1963 | Short voice | |
| A Fallible Fable | 1963 | Short voice | |
| Whatcha Watchin' | 1963 | Short voice | |
| Chicken Hearted Wolf | 1963 | Short voice | |
| The New Hanna-Barbera Cartoon Series | 1962-1963 | TV Series | Mr. Twiddles |
| Just a Wolf at Heart | 1963 | Short voice | |
| Bunnies Abundant | 1962 | Short voice | |
| Rancid Ransom | 1962 | Short voice | |
| Chicken Fracas-See | 1962 | Short voice | |
| Bearly Able | 1962 | Short voice | |
| Top Cat | 1961-1962 | TV Series | Al the Actor / Griswald / The Boy / ... |
| Swash Buckled | 1962 | Short voice | |
| Beef for and After | 1962 | Short voice | |
| Bungle Uncle | 1962 | Short voice | |
| The Yogi Bear Show | 1961-1962 | TV Series | Boo Boo
Ranger Smith
Major Minor
... |
| Loopy's Hare-Do | 1961 | Short voice | |
| Quick Draw McGraw | 1959-1961 | TV Series | Narrator / Toot Sweet / The General / ... |
| The Huckleberry Hound Show | 1958-1961 | TV Series | Pixie
Boo Boo
Narrator
... |
| Catch Meow | 1961 | Short voice | |
| Child Sock-Cology | 1961 | Short | Zookeeper / Gorilla / Storekeeper (voice) |
| Fee Fie Foes | 1961 | Short voice | |
| No Biz Like Shoe Biz | 1960 | Short voice | |
| Here, Kiddie, Kiddie | 1960 | Short voice | |
| The Do-Good Wolf | 1960 | Short voice | |
| Creepy Time Pal | 1960 | Short voice | |
| Life with Loopy | 1960 | Short voice | |
| The Ruff & Reddy Show | 1957-1960 | TV Series | Ruff / Narrator / Professor Gizmo / ... |
| Tale of a Wolf | 1960 | Short voice | |
| Wolf Hounded | 1959 | Short | Pig #1 (voice) |
| Matty's Funnies with Beany and Cecil | 1959 | TV Series | Additional Voices (voice) |
$250,000
