Credits

• 1987 · ThunderCats Ho! – The Movie as Lynx-O / Snarf / Slythe / Grune the Destroyer / Ratar-O / Captain Shiner / Topspinner (voice) (as Robert McFadden)
• 1986 · SilverHawks as Cmdr. Stargazer / Steel Will / Hardware (voice)
• 1985 · The Life & Adventures of Santa Claus as Tingler (voice)
• 1985 · ThunderCats as Snarf / Slithe (voice)
• 1985 · ThunderCats: Exodus (The Movie) as Snarf (voice)
• 1983 · The Wind in the Willows as Magistrate (voice)
• 1983 · The Coneheads as (voice)
• 1982 · The Flight of Dragons as Sir Orrin Neville-Smythe (voice)
• 1981 · The Leprechauns' Christmas Gold as Lord of the Leprechauns (voice)
• 1981 · The Berenstain Bears' Easter Surprise as Boss Bunny
• 1980 · Pinocchio's Christmas as Cricket (voice)
• 1980 · Gnomes as Kostya, the Russian Gnome (voice)
• 1979 · Rudolph and Frosty's Christmas in July as Donner (voice)
• 1977 · The Fourth King as The beaver (voice)
• 1977 · The Easter Bunny Is Comin' to Town as Chugs / Old Man (voice)
• 1976 · The Little Drummer Boy Book II as Plato (voice)
• 1974 · The Year Without a Santa Claus as Jingle Bells (voice)
• 1974 · 'Twas the Night Before Christmas as Substation Operator / Councilmen / Handyman (voice)
• 1974 · Jungle Jack as
• 1973 · Who’s Dragon as
• 1972 · The Red Baron as Voice
• 1972 · Popeye Meets the Man Who Hated Laughter as Male characters (voice)
• 1972 · The Mad, Mad, Mad Monsters as Baron Henry von Frankenstein (voice)
• 1972 · Hans Christian Andersen's The Emperor's New Clothes as Jaspar (voice)
• 1969 · Balloon Snatcher as Oscar (voice)
• 1969 · Scientific Sideshow as Oscar (voice)
• 1968 · Loops and Swoops as Sad Cat
• 1968 · The Abominable Mountaineers as
• 1968 · Big Game Fishing as Sad Cat
• 1967 · The Wacky World of Mother Goose as (voice)
• 1967 · Robin Hoodwinked as King / Poor Man
• 1967 · The Squaw Path as Geronimo/Say-Ah the Medicine Man/Foback/Big Yawn (voice)
• 1966 · Cool McCool as Cool McCool (voice)
• 1966 · Scuba Duba Do as Sad Cat / Gadmouse / Fenimore / Latimore (voice)
• 1966 · A Balmy Knight as Sir Blur/Grandpa Dragon (voice)
• 1966 · The Defiant Giant as George the Giant
• 1966 · Haunted Housecleaning as
• 1966 · Gems From Gemini as
• 1965 · Milton the Monster as Milton the Monster (voice)
• 1965 · The Third Musketeer as Sad Cat / Gadmouse / Fenimore / Latimore / Narrator (voice)
• 1965 · Dress Reversal as Sad Cat / Gadmouse / Fenimore / Latimore / Narrator (voice)
• 1965 · Don't Spill the Beans as Sad Cat / Gadmouse / Fenimore / Latimore / Narrator (voice)
• 1965 · Gadmouse the Apprentice Good Fairy as Sad Cat / Gadmouse / Fenimore / Latimore / Impressario / Narrator (voice)
• 1965 · Horning In as King Artie (voice)
• 1965 · The Invisibeam as
• 1964 · Linus the Lionhearted as Lovable Truly / Rory Raccoon / So Hi (voice)
• 1964 · Adventure By the Sea as Luno / Tim
• 1964 · The Astronut Show as Astro
• 1964 · King Rounder as
• 1964 · Roc-a-Bye Sinbad as
• 1963 · The Sheepish Wolf as Wolf / Sheriff / Sheep (uncredited)
• 1963 · Tell Me a Badtime Story as Nasty / Explorer Ponce de Leon / Captain John Smith
• 1963 · Trouble in Baghdad as
• 1963 · The Missing Genie as
• 1960 · Courageous Cat and Minute Mouse as