Leon Janney Filmography
- Actor (28 credits)
- The Andros Targets (1977) Elliot Taylor
- Charly (1968) Dr. Richard Nemur
- The Jackie Gleason Show (1966) Interrogator
- East Side/West Side (1963) Roger Hamilton Bradford
- Car 54, Where Are You? (1961) Dr. Strum
- The Last Mile (1959) Callahan
- Sunday Showcase (1959)
- The Philadelphia Story (1959) Sidney Kidd
- The Little Rascals (1955) Donald «Spud» (1955), хроника
- Tom Corbett, Space Cadet (1950) Professor Hinkel
- Stolen Paradise (1940) Richard «Dick» Gordon
- Hollywood Party (1937) играет самого себя, not listed in credits
- Penrod and Sam (1931) Penrod
- Their Mad Moment (1931) Narcio
- Father's Son (1931) Bill Emory
- The Doorway to Hell (1930) Jackie
- Screen Snapshots Series 9, No. 22 (1930) играет самого себя
- Old English (1930) Jock
- Bear Shooters (1930)
- Courage (1930) Bill Colbrook
- An Intimate Dinner in Celebration of Warner Bros. Silver Jubilee (1930) играет самого себя
- The Younger Generation (1929) Eddie Lesser as a Boy, not listed in credits
- The Leatherneck (1929) Altar Boy, not listed in credits
- Abie's Irish Rose (1928) Little Abie, not listed in credits
- The Wind (1928) Cora's Child
- Comrades (1928) Perry O'Toole as a boy
- The Elephant's Elbows (1928) Johnny Smith
- Quality Street (1927) Student, not listed in credits
