
| Title | Year | Status | Character |
|---|
| The Ghost Busters | 1975 | TV Series | Werewolf / Harry Albert |
| Fraidy Cat | 1975 | TV Series | Tonka / Wizard / Captain Kitt / ... (voice) |
| The New Tom & Jerry Show | 1975 | TV Series | Additional Voices (voice) |
| Uncle Croc's Block | 1975 | TV Series | Tonka / Wizard / Captain Kitt / ... (voice) |
| The Hoober-Bloob Highway | 1975 | TV Movie voice | |
| The Strongest Man in the World | 1975 | | State Coach |
| Rikki-Tikki-Tavi | 1975 | TV Short | Darzee the Tailorbird (voice) |
| Hong Kong Phooey | 1974 | TV Series | Tin Nose / Curly Boondock / Sheriff Bumbleweed |
| Emergency! | 1974 | TV Series | Fred Gibson |
| Wheelie and the Chopper Bunch | 1974 | TV Series | Hi-Riser |
| The Waltons | 1974 | TV Series | Spanky Logan |
| Wait Till Your Father Gets Home | 1972-1974 | TV Series | Chet Boyle |
| ABC Afterschool Specials | 1974 | TV Series | Timer |
| Happy Days | 1974 | TV Series | Duke |
| Adam-12 | 1973-1974 | TV Series | Tony |
| The Addams Family | 1973 | TV Series | Gomez Addams |
| Yogi's Gang | 1973 | TV Series | |
| Inch High, Private Eye | 1973 | TV Series | Inch High |
| Big Daddy | 1973 | TV Movie | |
| The Amazing Chan and the Chan Clan | 1972 | TV Series | Stanley |
| The New Scooby-Doo Movies | 1972 | TV Series | Uncle Nathaniel / Sedgwick Jones |
| The ABC Saturday Superstar Movie | 1972 | TV Series | Big Louie / Count Krumley / Mr. McGuffin / ... |
| The Flintstone Comedy Hour | 1972 | TV Series | Moonrock (1972) (voice, as Len Weinrib) |
| Fol-de-Rol | 1972 | TV Movie | Various Characters (voice) |
| Love, American Style | 1972 | TV Series | Julio (segment "Love and the Anxious Mama") / Murph (segment "Love and the Fullback") |
| Bedknobs and Broomsticks | 1971 | | Secretary Bird / Lion (voice) |
| Help!... It's the Hair Bear Bunch! | 1971 | TV Series voice, as Lenny Weinrib | |
| Cattle Battle | 1971 | Short | Roland Rattfink (voice, as Leonard Weinrib) |
| A Fink in the Rink | 1971 | Short | Roland Rattfink (voice, as Leonard Weinrib) |
| The Great Continental Overland Cross-Country Race | 1971 | Short | Roland Rattfink Narrator ... (voice, as Leonard Weinrib) |
| Trick or Retreat | 1971 | Short | Roland Rattfink (voice, as Leonard Weinrib) |
| The Point | 1971 | TV Movie | Count (voice, as Lenny Weinrib) |
| Lidsville | 1971 | TV Series | Captain Hooknose / Mr. Big / Mr. Chow / ... |
| The Pebbles and Bamm-Bamm Show | 1971 | TV Series | Moonrock |
| Doctor Dolittle | 1970 | TV Series | Sam Scurvy |
| Tales of Washington Irving | 1970 | TV Movie voice | |
| Gem Dandy | 1970 | Short | Roland Rattfink (voice) |
| War and Pieces | 1970 | Short | Roland Rattfink Captain ... (as Leonard Weinrib) |
| Robin Goodhood | 1970 | Short | Roland Rattfink (voice, as Leonard Weinrib) |
| Gas! -Or- It Became Necessary to Destroy the World in Order to Save It. | 1970 | | Various Voices (voice, uncredited) |
| Uncle Sam Magoo | 1970 | TV Movie | John F. Kennedy (voice) |
| Bridgework | 1970 | Short | Roland Rattfink (voice, as Leonard Weinrib) |
| The Foul Kin | 1970 | Short | Roland Rattfink Rotten Rattfink ... (voice, as Leonard Weinrib) |
| A Taste of Money | 1970 | Short | Rattfink (voice, as Leonard Weinrib) |
| Say Cheese, Please | 1970 | Short | Roland Rattfink (voice) |
| H.R. Pufnstuf | 1969-1970 | TV Series | H.R. Pufnstuf Seymour Spider Ludicrous Lion |
| A Pair of Sneakers | 1969 | Short | Roland Rattfink (voice, as Leonard Weinrib) |
| Sweet and Sourdough | 1969 | Short | Roland Rattfink (voice, as Leonard Weinrib) |
| Flying Feet | 1969 | Short | Roland Rattfink (voice, as Leonard Weinrib) |
| Hawks and Doves | 1968 | Short | Roland Rattfink (voice, as Leonard Weinrib) |
| London Derrière | 1968 | Short | Scotland Yard Detective (voice) |
| Good Times | 1967 | | Leslie Garth |
| Jericho | 1967 | TV Series | Bellegambe |
| The Man from U.N.C.L.E. | 1966 | TV Series | Winky Blintz |
| Laredo | 1966 | TV Series | Bud Sweet |
| Not with My Wife, You Don't! | 1966 | | Green Eyed Monster of Jealousy (voice, uncredited) |
| Burke's Law | 1964-1965 | TV Series | Maddox / Cully |
| The Dick Van Dyke Show | 1961-1965 | TV Series | Phil Franklin / Danny Brewster / Jackie Brewster |
| Wendy and Me | 1964 | TV Series | Policeman |
| Valentine's Day | 1964 | TV Series | Nervous Movie Patron |
| The Munsters | 1964 | TV Series | Freddie |
| My Favorite Martian | 1964 | TV Series | Dr. Herbie Little |
| Grindl | 1964 | TV Series | Archie Williams |
| Channing | 1964 | TV Series | Clancy Schwartz |
| It's a Mad Mad Mad Mad World | 1963 | | F-14 / Ladder Fireman (voice, uncredited) |
| The Thrill of It All | 1963 | | Truck Driver (as Len Weinrib) |
| 77 Sunset Strip | 1963 | TV Series | Joe Chiappardo |
| The Twilight Zone | 1963 | TV Series | Buddy Russell |
| The Many Loves of Dobie Gillis | 1963 | TV Series | Eddie Baker |
| Don't Call Me Charlie | 1962 | TV Series | Shoemaker |
| Tales of Terror | 1962 | | Policeman (segment "The Black Cat") |
| Alfred Hitchcock Presents | 1960-1962 | TV Series | Stanley / Harry / Amos |
| Pete and Gladys | 1962 | TV Series | |
| Bachelor Father | 1961 | TV Series | Lowell |
| Dennis the Menace | 1961 | TV Series | Trucker |
| Follow the Sun | 1961 | TV Series | Leo |
| The Spike Jones Show | 1961 | TV Series | Various |
| The Rebel | 1960 | TV Series | Sheriff |
| Swinging Spiketaculars | 1960 | TV Series | |
| Peter Gunn | 1960 | TV Series | Vince Canell |
| The Red Skelton Hour | 1959 | TV Series | Ronnie |
| Steve Canyon | 1959 | TV Series | A / P Lowenthal |
| Yo Yogi! | 1991-1992 | TV Series | Max the Mole |
| Spacecats | 1991 | TV Series | Incidental Characters (1991) (voice) |
| The Adventures of Don Coyote and Sancho Panda | 1990 | TV Series | Additional Voices |
| The Adventures of Ronald McDonald: McTreasure Island | 1990 | Video short | The Captain Pirates (voice, as Len Weinrib) |
| Barnyard Commandos | 1990 | TV Series 1990 voice, as Lenny Weinrib | |
| Garfield and Friends | 1989 | TV Series | |
| The Smurfs | 1981-1989 | TV Series | Bigmouth / Additional Voices |
| The Further Adventures of SuperTed | 1989 | TV Series | Additional Voices |
| Foofur | 1987 | TV Series | |
| Saber Rider and the Star Sheriffs | 1987 | TV Series | Colonel Wyatt |
| The Flintstone Kids | 1986-1987 | TV Series | Fred Flintstone / Commissioner |
| Rambo | 1986 | TV Series | Gripper / Mad Dog |
| Adventures of the Gummi Bears | 1986 | TV Series | Zorlock |
| Kissyfur | 1986 | TV Series | Charles / Lenny |
| Voltron: Fleet of Doom | 1986 | Video | Hunk / Cliff / Rocky / ... (voice) |
| The Jetsons | 1985 | TV Series | |
| CBS Storybreak | 1985 | TV Series | |
| Yogi's Treasure Hunt | 1985 | TV Series | Additional Voices |
| Voltron: Defender of the Universe | 1984-1985 | TV Series | Hunk Prince Lotor Cliff ... |
| The Smurfic Games | 1983 | TV Movie | Bigmouth (voice) |
| Jokebook | 1982 | TV Series 1982 voice | |
| Pac-Man | 1982 | TV Series | Pacula |
| Bugs Bunny's 3rd Movie: 1001 Rabbit Tales | 1982 | | Prince Abadaba (voice) |
| Mork & Mindy/Laverne & Shirley/Fonz Hour | 1982 | TV Series | Additional Voices |
| The Scooby and Scrappy-Doo Puppy Hour | 1982 | TV Series | Scrappy-Doo (voice) |
| The Little Rascals | 1982 | TV Series | Additional Voices |
| Trollkins | 1981 | TV Series | Additional Voices |
| Space Stars | 1981 | TV Series | Dipper |
| The Kwicky Koala Show | 1981 | TV Series voice | |
| The Flintstone Comedy Show | 1980 | TV Series | Moonrock Crater / Sgt. Boulder |
| Shogun Assassin | 1980 | | Voice (voice) |
| Scooby-Doo and Scrappy-Doo | 1979-1980 | TV Series | Scrappy-Doo |
| The Plastic Man Comedy/Adventure Show | 1979 | TV Series | Ghostfinger (1979) (voice) |
| Walt Disney's Wonderful World of Color | 1979 | TV Series | Various |
| The Super Globetrotters | 1979 | TV Series | Count Bragula / Tattoo Man |
| The Flintstones Meet Rockula and Frankenstone | 1979 | TV Movie | Mr. Silika (voice) |
| The Scooby-Doo/Dynomutt Hour | 1978 | TV Series | |
| Yogi's Space Race | 1978 | TV Series | |
| Tarzan and the Super 7 | 1978 | TV Series | Commissioner Gordon The Joker The Penguin ... (voice) |
| The Bay City Rollers Show | 1978 | TV Series | |
| Fred Flintstone and Friends | 1977 | TV Series voice | |
| Captain Caveman and the Teen Angels | 1977 | TV Series | Additional Voices |
| CHiPs | 1977 | TV Series | H.R. Pufnstuf |
| ABC Nutrition Spots | 1977 | TV Series | Timer (voice) |
| C B Bears | 1977 | TV Series | Rattle / The King / Yukayuka (voice) |
| The Skatebirds | 1977 | TV Series | Knock-Knock Woodpecker (voice) |
| The New Adventures of Batman | 1977 | TV Series | Commissioner Gordon The Joker The Penguin ... |
| The Kids from C.A.P.E.R. | 1976 | TV Series | Conrad |
| Dynomutt Dog Wonder | 1976 | TV Series | Additional voices |
| The Krofft Supershow | 1976 | TV Series | Magic Mongo in ('Magic Mongo') (1977-1978) |
| The Pink Panther Laugh and a Half Hour and a Half Show | 1976 | TV Series | Roland / Rattfink (voice, as Leonard Weinrib) |
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