Credits

• 1987 ·ThunderCats Ho! – The Movieas Lynx-O / Snarf / Slythe / Grune the Destroyer / Ratar-O / Captain Shiner / Topspinner (voice) (as Robert McFadden)
• 1986 ·SilverHawksas Cmdr. Stargazer / Steel Will / Hardware (voice)
• 1985 ·The Life & Adventures of Santa Clausas Tingler (voice)
• 1985 ·ThunderCatsas Snarf / Slithe (voice)
• 1985 ·ThunderCats: Exodus (The Movie)as Snarf (voice)
• 1983 ·The Wind in the Willowsas Magistrate (voice)
• 1983 ·The Coneheadsas (voice)
• 1982 ·The Flight of Dragonsas Sir Orrin Neville-Smythe (voice)
• 1981 ·The Leprechauns' Christmas Goldas Lord of the Leprechauns (voice)
• 1981 ·The Berenstain Bears' Easter Surpriseas Boss Bunny
• 1980 ·Pinocchio's Christmasas Cricket (voice)
• 1980 ·Gnomesas Kostya, the Russian Gnome (voice)
• 1979 ·Rudolph and Frosty's Christmas in Julyas Donner (voice)
• 1977 ·The Fourth Kingas The beaver (voice)
• 1977 ·The Easter Bunny Is Comin' to Townas Chugs / Old Man (voice)
• 1976 ·The Little Drummer Boy Book IIas Plato (voice)
• 1974 ·The Year Without a Santa Clausas Jingle Bells (voice)
• 1974 ·'Twas the Night Before Christmasas Substation Operator / Councilmen / Handyman (voice)
• 1974 ·Jungle Jackas
• 1973 ·Who’s Dragonas
• 1972 ·The Red Baronas Voice
• 1972 ·Popeye Meets the Man Who Hated Laughteras Male characters (voice)
• 1972 ·The Mad, Mad, Mad Monstersas Baron Henry von Frankenstein (voice)
• 1972 ·Hans Christian Andersen's The Emperor's New Clothesas Jaspar (voice)
• 1969 ·Balloon Snatcheras Oscar (voice)
• 1969 ·Scientific Sideshowas Oscar (voice)
• 1968 ·Loops and Swoopsas Sad Cat
• 1968 ·The Abominable Mountaineersas
• 1968 ·Big Game Fishingas Sad Cat
• 1967 ·The Wacky World of Mother Gooseas (voice)
• 1967 ·Robin Hoodwinkedas King / Poor Man
• 1967 ·The Squaw Pathas Geronimo/Say-Ah the Medicine Man/Foback/Big Yawn (voice)
• 1966 ·Cool McCoolas Cool McCool (voice)
• 1966 ·Scuba Duba Doas Sad Cat / Gadmouse / Fenimore / Latimore (voice)
• 1966 ·A Balmy Knightas Sir Blur/Grandpa Dragon (voice)
• 1966 ·The Defiant Giantas George the Giant
• 1966 ·Haunted Housecleaningas
• 1966 ·Gems From Geminias
• 1965 ·Milton the Monsteras Milton the Monster (voice)
• 1965 ·The Third Musketeeras Sad Cat / Gadmouse / Fenimore / Latimore / Narrator (voice)
• 1965 ·Dress Reversalas Sad Cat / Gadmouse / Fenimore / Latimore / Narrator (voice)
• 1965 ·Don't Spill the Beansas Sad Cat / Gadmouse / Fenimore / Latimore / Narrator (voice)
• 1965 ·Gadmouse the Apprentice Good Fairyas Sad Cat / Gadmouse / Fenimore / Latimore / Narrator (voice)
• 1965 ·Horning Inas King Artie (voice)
• 1965 ·The Invisibeamas
• 1964 ·Linus the Lionheartedas Lovable Truly / Rory Raccoon / So Hi (voice)
• 1964 ·Adventure By the Seaas Luno / Tim
• 1964 ·The Astronut Showas Astro
• 1964 ·King Rounderas
• 1964 ·Roc-a-Bye Sinbadas
• 1963 ·The Sheepish Wolfas Wolf / Sheriff / Sheep (uncredited)
• 1963 ·Tell Me a Badtime Storyas Nasty / Explorer Ponce de Leon / Captain John Smith
• 1963 ·Trouble in Baghdadas
• 1963 ·The Missing Genieas
• 1960 ·Courageous Cat and Minute Mouseas