Acting
- 2005Ben 10Marty (voice)1 ep.
- 2005Avatar: The Last AirbenderAzulon (voice)1 ep.
- 1994Spider-ManBob Frank / Whizzer (voice)3 ep.
- 1985Disney's Adventures of the Gummi BearsSir Thornberry (voice)6 ep.
- 1985Dumbo's CircusSebastian (voice)120 ep.
- 1985Street HawkDr. Hatfield1 ep.
- 1983Alvin and the Chipmunks(voice)2 ep.
- 1982PandamoniumAlgernon (voice)13 ep.
- 1981Goldie Gold and Action JackAdditional Voices (voice)13 ep.
- 1979Breaking Up Is Hard to DoLaura's Father2 ep.
- 1978Fantasy IslandMr. Maxwell1 ep.
- 1974Little House on the PrairieMr. Frederick Deerling2 ep.
- 1974Land of the Lost3 ep.
- 1974The Six Million Dollar ManIvan2 ep.
- 1973Sigmund and the Sea MonstersBig Daddy Ooze29 ep.
- 1973HawkinsDr. Lakin1 ep.
- 1971ColumboGardener2 ep.
- 1971LidsvilleAdmiral Scuttlebutt17 ep.
- 1969Then Came BronsonBrother Paul1 ep.
- 1969H.R. PufnstufBoris Karloff Tree17 ep.
- 1966Star TrekSpace Central (voice)(uncredited)5 ep.
- 1960The FlintstonesJ. Montague Gypsum (voice)1 ep.
Guest appearances
- 2006Avatar: The Last AirbenderAzulon (voice)1 ep.
- 2006Ben 10Marty (voice)1 ep.
- 1997Spider-ManBob Frank / Whizzer (voice)3 ep.
- 1989Disney's Adventures of the Gummi BearsSir Thornberry (voice)6 ep.
- 1988Knots LandingJudge Hollander1 ep.
- 1985Street HawkDr. Hatfield1 ep.
- 1984Falcon CrestSheriff Paterson1 ep.
- 1983Alvin and the Chipmunks(voice)2 ep.
- 1982CHiPsMr. Blume1 ep.
- 1981Buck Rogers in the 25th CenturyKoldar1 ep.
- 1977Little House on the PrairieMr. Frederick Deerling, Mr. Stohler2 ep.
- 1978Fantasy IslandMr. Maxwell1 ep.
- 1977The Bob Newhart ShowSergeant Webber1 ep.
- 1974The Six Million Dollar ManIvan, Russian Operator2 ep.
- 1974Land of the Lost3 ep.
- 1970Adam-12Hutton, Tex2 ep.
- 1970GunsmokeBurnett (uncredited), Henry Folsom, Ludlow, Station Master4 ep.
- 1973HawkinsDr. Lakin1 ep.
- 1972ColumboAuctioneer, Gardener2 ep.
- 1969Then Came BronsonBrother Paul1 ep.
- 1966Star TrekBalok (voice) (uncredited), Provider #2, Space Central (voice)(uncredited), Transporter Chief (voice) (uncredited)5 ep.
- 1967The MonkeesPublisher1 ep.
- 1967BatmanTeller1 ep.
- 1967Petticoat JunctionAnnouncer1 ep.
- 1967Get SmartPrince1 ep.
- 1965The Wild Wild WestCharlie1 ep.
- 1962The FlintstonesJ. Montague Gypsum (voice)1 ep.
Also known as: Walker R. Edmiston