
Acting
- 1970Night GalleryThe Old Man1 ep.
- 1969Love, American StyleDr. Krikorian2 ep.
- 1968It Takes a ThiefJohn B. Cannon1 ep.
- 1967DragnetBasil Jennings1 ep.
- 1966Mission: ImpossibleCardinal Vossek2 ep.
- 1966T.H.E. CatSalen Grigor1 ep.
- 1964Voyage to the Bottom of the SeaNoah Grafton1 ep.
- 1963Bob Hope Presents the Chrysler TheatreToulouse4 ep.
- 1963My Favorite MartianMr. Green1 ep.
- 1961The Dick Van Dyke ShowGrandpa Petrie1 ep.
- 1961HazelElderly Man1 ep.
- 1960The Tall ManSummers1 ep.
- 1959Mr. LuckyGardenia O'Toole1 ep.
- 1959The UntouchablesMen's Room Attendant (uncredited)5 ep.
- 1959Dennis the MenaceMr. Gibson1 ep.
- 1959The Twilight ZoneFranklin4 ep.
- 1959The Third ManKarl Van Root1 ep.
- 1959Lock-UpDesk Clerk1 ep.
- 1959NBC Sunday ShowcaseWedding Chapel Operator1 ep.
- 1959The DeputyOzzie Brandon1 ep.
- 1958Jefferson DrumLucius Coin26 ep.
- 1958Sea HuntLars Anderson1 ep.
- 1957Boots and Saddles1 ep.
- 1957Have Gun, Will TravelSpeedy Deliverer2 ep.
- 1956Broken ArrowStage Passenger1 ep.
- 1955Alfred Hitchcock PresentsClub Member (uncredited)3 ep.
- 1955GunsmokeTurnkey8 ep.
- 1954The Adventures of Rin Tin TinChief Nana1 ep.
- 1953You Are There1 ep.
- 1952The Ford Television TheatreSilk1 ep.
- 1952Adventures of SupermanKing of Sartania1 ep.
Guest appearances
- 1972Love, American StyleDr. Krikorian, Phil2 ep.
- 1972Night GalleryThe Old Man1 ep.
- 1969The F.B.I.Ellis Pierson1 ep.
- 1969DragnetBasil Jennings1 ep.
- 1969It Takes a ThiefJohn B. Cannon1 ep.
- 1963The VirginianJohn Evans, Stonecutter2 ep.
- 1967IronsideCommodore Wallace1 ep.
- 1966T.H.E. CatSalen Grigor1 ep.
- 1966Mission: ImpossibleCardinal Vossek2 ep.
- 1964Bob Hope Presents the Chrysler TheatreBishop Andrews, Mario, McPherson, Toulouse4 ep.
- 1956GunsmokeDriver, Grandpa Harris, Jake Bookly, Messenger8 ep.
- 1957Perry MasonCraig Jefferson, Tulloch2 ep.
- 1965Voyage to the Bottom of the SeaNoah Grafton1 ep.
- 1965Run for Your LifeJudge Kleiner1 ep.
- 1965Daniel BooneNitashanta1 ep.
- 1964RawhideTahoolcut1 ep.
- 1964The FugitiveOld Timer1 ep.
- 1964My Favorite MartianMr. Green1 ep.
- 1963The Third ManKarl Van Root1 ep.
- 1961The Twilight ZoneFranklin, L. J. Smithers, Marvin, Officer4 ep.
- 1962The Dick Van Dyke ShowGrandpa Petrie1 ep.
- 1962HazelElderly Man1 ep.
- 1962Wagon TrainJamieson1 ep.
- 1962The Tall ManSummers1 ep.
- 1962ThrillerThe Old Man1 ep.
- 1960The UntouchablesFlophouse Manager (uncredited), Men's Room Attendant (uncredited), Museum Night Watchman (uncredited), News Vendor (uncredited)5 ep.
- 1962CheyenneDoctor (uncredited)1 ep.
- 1961The DeputyOzzie Brandon1 ep.
- 1960Lock-UpDesk Clerk1 ep.
- 1956Alfred Hitchcock PresentsAlfred J. Sloane, Club Member (uncredited), Josiah Wingate3 ep.
- 1960Dennis the MenaceMr. Gibson1 ep.
- 1960One Step BeyondPianist1 ep.
- 1959Have Gun, Will TravelCornish - Storekeeper, Speedy Deliverer2 ep.
- 1960Mr. LuckyGardenia O'Toole1 ep.
- 1959NBC Sunday ShowcaseWedding Chapel Operator1 ep.
- 1958Sea HuntLars Anderson1 ep.
- 1958The Adventures of Rin Tin TinChief Nana1 ep.
- 1957Boots and Saddles1 ep.
- 1957Adventures of SupermanKing of Sartania1 ep.
- 1956Broken ArrowStage Passenger1 ep.
- 1955Schlitz Playhouse of Stars2 ep.
- 1955The Ford Television TheatreSilk1 ep.
- 1955You Are There1 ep.
Also known as: Harry Cyril Delevanti · Syril Delevanti