Television
The Lone Ranger – episode – Dan Reid's Fight for Life – Roy Barnett (1954)
Treasury Men in Action – 5 episodes (1955)
The People's Choice (1955) 16 episodes Roger Crutcher
Yancy Derringer – episode – Three Knaves from New Haven – Arthur Travers (1958)
The Real McCoys – 3 episodes – various (1958–1963)
Bonanza – episode – The Sisters – John Henry (1959)
Shotgun Slade – episode – The Smell of Money – Charlie Cummings (1960)
The Flintstones – 73 episodes – Mr. Slate, Grand Poobah, Joe, Additional voices (1960–1966)
Whispering Smith – episode – The Idol – Eddie Royce (1961)
Top Cat – episodes – Fancy-Fancy, The Sergeant (1961–1962)
Jonny Quest – 6 episodes – Dr. Benton C. Quest (first 4 episodes, additional voices (1964–1965)
The Peter Potamus Show (14 episodes of it) & The Magilla Gorilla Show (9 episodes of it) – Segment – Breezly and Sneezly – Colonel Fuzzby (1964–1965)
Gomer Pyle, U.S.M.C. – 2 episodes – They Shall Not Pass & Sue the Pants Off 'Em – Major Stone Mr. Clark (1964–1967)
The Man from U.N.C.L.E. – episode – The Never-Never Affair – Varner (1965)
Hogan's Heroes – 8 episodes – Professor Bauer, Felix, Decker, Major Rudel, Karl, Inspector General, Major Kohler, Captain Mueller (1965-1970)
The Atom Ant Show – Segment – Atom Ant – Narrator (uncredited) (1965–1966)
Frankenstein Jr. and The Impossibles – Professor Conroy, Additional voices (1966)
The Secret Squirrel Show – 26 episodes – Segment – Squiddly Diddly/Winsome Witch – Chief Winchley, Additional voices (1966-1967)
The Abbott and Costello Cartoon Show – additional voices (1967)
Iron Horse – episode – Decision at Sundown – Warden (1967)
Birdman – Various (1967)
Samson & Goliath – additional voices (1967–1968)
Dragnet – Narrator (uncredited) (1967–1969)
Moby Dick and Mighty Mightor – Pond, Ork, Tog, Additional voices (1967–1969)
The Banana Splits – episode – Fariik, Bakaar ("Arabian Knights" segment) (1968)
The Adventures of Gulliver – Captain Leech (1968)
Wacky Races – 17 episodes – Luke, Blubber Bear (1968–1969)
The Mod Squad – episode – The Girl in Chair Nine – Professor Aaron Tanner (1969)
Scooby-Doo, Where Are You! – Dr. Jekyll/Ghost of Mr. Hyde, Sheriff, additional voices (1969–1970)
Help!... It's the Hair Bear Bunch! – 16 episodes – Eustace P. Peevly, The Zoo Superintendent, Slicks the Fox, Hippy the Hippopotamus, Dr. Kneeknocker, Zeed the Zebra, Additional voices (1971)
The Flintstone Comedy Hour – Noodles (1972)
Sealab 2020 – Captain Mike Murphy (1972)
A Christmas Story – TV Movie (1972)
The Thanksgiving That Almost Wasn't – TV movie (1972)
Mission: Impossible – episode – Underground – Director (1972)
Yogi's Ark Lark – Benny the Ball, Doggie Daddy, Hardy Har Har (1972)
Wait Till Your Father Gets Home (1972–1973)
The New Scooby-Doo Movies – Additional Voices (1972-1974)
Jeannie – 16 episodes – Great Hadji (1973)
Super Friends (1973)
Yogi's Gang – Doggie Daddy, Hardy Har Har, Additional Voices (1973)
Inch High, Private Eye – 13 episodes – Mr. Finkerton (1973)
Goober and the Ghost Chasers – Additional voices (1973)
Speed Buggy – Additional voices (1973)
The Addams Family – Cousin Itt, additional voices (1973)
McMillan & Wife – episode – The Fine Art of Staying Alive – Harry (1973)
Butch Cassidy – Mr. Socrates (1973)
The Six Million Dollar Man – episode – Nuclear Alert – Two Star General (uncredited) (1974)
Devlin – Additional voices (1974)
These Are the Days – Additional voices (1974)
ABC Afterschool Specials – episode – Cyrano – Richelieu (1974)
Partridge Family 2200 A.D. – Reuben Kinkaid (1974–1975)
The Streets of San Francisco – episode – The Programming of Charlie Blake – Leonard Paxton (1975)
The Tom & Jerry Show – Tom, Jerry, Spike – additional voices (1975)
The Mumbly Cartoon Show – Shnooker (1976)
Davy Crockett on the Mississippi – TV Movie – Sloan, Andrew Jackson, Blacksmith (1976)
Clue Club – Sheriff Bagley (1976)
The Scooby-Doo/Dynomutt Hour – Additional voices (1976–1978)
A Flintstone Christmas – TV Special – Mr. Slate (1977)
Laff-A-Lympics – Mildew Wolf, Doggie Daddy, Dread Baron, The Great Fondue, Additional voices (1977–1979)
CB Bears – additional voices (1977)
Captain Caveman and the Teen Angels – additional voices (1977–1980)
Galaxy Goof-Ups – Captain Snerdley, General Blowhard (1978)
The All New Popeye Hour – Mr. No No, Additional voices (1978)
The Flintstones: Little Big League – TV Movie – Mr. Slate (1978)
The New Fantastic Four – Doctor Doom, Professor Gregson Gilbert, Magneto, Additional voices (1978)
Casper's First Christmas – Doggie Daddy, Hairy Scary (1979)
The Super Globetrotters (1979)
Gulliver's Travels – TV Movie (1979)
Fred and Barney Meet the Thing – Segment – The Thing – Dr. Harkness (1979)
Scooby-Doo and Scrappy-Doo – Additional voices (1979)
The New Fred and Barney Show – Mr. Slate (1979)
The Flintstones Meet Rockula and Frankenstone – TV special – Count Rockula (1979)
The Plastic Man Comedy/Adventure Show – Mayor ("Mighty Man and Yukk" segment), Additional voices (1979)
The Flintstone Comedy Show – Mr. Slate (1980)
The Flintstones: Fred's Final Fling – TV Special – Frank Frankenstone, Dinosaur, Monkey #1 (1980)
The Flintstones' New Neighbors – TV Special – Frank Frankenstone (1980)
The Kwicky Koala Show – Segment – Kwicky Koala – Wilford Wolf (1981)
Daniel Boone – TV Movie (1981)
The Flintstones: Jogging Fever – TV Special – Frank Frankenstone, Mr. Slate (1981)
The Flintstones: Wind-Up Wilma – TV Special – Frank Frankenstone (1981)
Space Stars (1981) – Additional voices
Spider-Man and His Amazing Friends – Colossus, Thunderbird, Shocker, Loki, Modred the Mystic, Ymir, Additional voices (1981–1983)
The Incredible Hulk (1982)
Jokebook (1982)
Laverne & Shirley with Special Guest Star the Fonz – Additional voices (1982)
Shirt Tales – additional voices (1982)
G.I. Joe: A Real American Hero – mini series – General Flagg, Old Man (1983)
The New Scooby and Scrappy-Doo Show – Additional voices (1983)
The Dukes – Additional voices (1983)
Mister T – Additional voices (1983)
The Transformers – Thundercracker, Windcharger, Kup, Huffer, Additional voices (1984–1987)
G.I. Joe – Scientist, General Franks, MacIntosh, Mr. Queeg, Additional voices (1985-1986)
Yogi's Treasure Hunt – Doggie Daddy (1985–1988)
The Berenstain Bears Show – Additional Male Voices (1985-1987)
The 13 Ghosts of Scooby-Doo – Boris Kreepoff / Freddie Cadaver (1985)
The Jetsons – Commissioner/DWMR Officer (1985–1987)
G.I. Joe – episode – The Spy Who Rooked Me – General Hawk (1986)
Centurions – Additional voices (1986)
Galaxy High School – Beef Bonk, Harvey Blastermeier (1986)
The Flintstone Kids – Ditto Master, Mr. Gemstone (1986–1987)
Bionic Six – Bionic-1, Jack Bennett, Klunk, Additional voices (1987)
Fraggle Rock – Doc, Philo, Grunge, Additional voices (1987)
The Video Adventures of Clifford the Big Red Dog – additional voices (1988)
Superman – Additional voices (1988)
Jem – Lord Trevor and creditor (Britrock) (1988)
X-Men: Pryde of the X-Men – TV Short – Professor X (1989)
TaleSpin – Additional voices (1990)
Wake, Rattle, and Roll – Segment – Fender Bender 500 – Doggie Daddy (1990)
Yo Yogi! – Doggie Daddy, Mr. Myopics (1991)
Darkwing Duck – episode – Heavy Mental – Major Synapse (1991)
Space Cats – Additional voices (1991)
What's New, Scooby-Doo? – episode – The Unnatural – Bob Taylor (2003)
Duck Dodgers – episode – The Green Loontern – Ganthet (2003)
Johnny Bravo – episode – Wilderness Protection Program/A Page Right Out of History – Mr. Slate (2004)
What's New, Scooby-Doo? – episode – Uncle Scooby and Antarctica – Zelig (2004)
