22/10/1938 - Stamford, Connecticut (Estados Unidos)
Apariciones en ST:[]
- Film "Star Trek III: The Search for Spock" (1984) - Kruge
Otros Trabajos Destacados:[]
- Serie "Taxi" (1978) - Reverendo Jim Ignatowski
- Film "The Adventures of Buckaroo Banzai Across the 8th Dimension" (1984) - John Bigboote
- Film "Back to the Future" (1985) - Dr. Emmett Brown
- Serie "Amazing Stories" (1986) - "Profesor B.O. Beanes" en ep. "Go to the Head of the Class"
- Film "Who Framed Roger Rabbit" (1988) - Baron von Rotton / "Juez Doom"
- Film "Back to the Future Part II" (1989) - Dr. Emmett Brown
- Film "Back to the Future Part III" (1990) - Dr. Emmett Brown
- Film "The Addams Family" (1991) - Tío Lucas
- Film "Addams Family Values" (1993) - Tío Lucas
- Film "The Pagemaster" (1994) - Señor Dewey / El Pagemaster
- Film "Anastasia" (1997) - Rasputin (voz)
- Film "My Favorite Martian" (1999) - Tío Martin
- Film "Hey Arnold! The Movie" (2002) - Coronel (voz)
- Film "Piranha" (2010) - Señor Goodman
- Serie "Fringe" (2011) - "Roscoe Joyce" en ep. "The Firefly"
- Serie "The Big Bang Theory" (2016) - "Theodore" en ep. "The Property Division Collision"
- Serie "12 Monkeys" (2017/2018) - "El Misionero"
- Serie "NCIS: Naval Criminal Investigative Service" (2020) - "Joseph Smith" en ep. "The Arizona"