Filmography
- Young Frankenstein (1974) (uncredited)
- The Prisoner of Zenda (1977)
- Fantasy Island (1977)
- Battlestar Galactica (1978)
- Sextette (1978)
- Journey's End (1983)
- The Ice Pirates (1984)
- Kicks (1985)
- Firewalker (1986)
- Last Resort (1986)
- Warlock (1988)
- Catacombs (1988)
- Tales from the Crypt (1990)
- Zandalee (1991)
- Puppet Master III (1992)
- Twin Peaks (1992)
- The Public Eye (1992)
- Army of Darkness (1993)
- Addams Family Values (1993)
- Clean Slate (1994)
- Babylon 5 (1994)
- Days of our Lives (1997–2002)
- The Lost World: Jurassic Park (1997)
- MouseHunt (1997)
- Jack Frost 2: Revenge of the Mutant Killer Snowman (2000)
- Birds of Prey (2002) (as Alfred Pennyworth)
- Inland Empire (2006)
- Garfield: A Tail of Two Kitties (2006)
- Wizards of Waverly Place (2007–2012) (as Professor Crumbs; recurring role)
- Star Wars: The Clone Wars (2008-2012) (as Palpatine / Darth Sidious)
- The Next Train Home (2011)
- Rango (2011)
- Green Lantern: The Animated Series (2012) (as Ganthet; recurring role) (His death is honored at the end of the episode, "Regime Change" - S1E10.)
Read more about this topic: Ian Abercrombie