Peter C. MacNicol (d. 10 Nisan 1954, Dallas, Teksas, ABD), Emmy Ödüllü Amerikalı oyuncudur.
Filmografi
- Dragonslayer (1981)
- Sophie's Choice (1982)
- Ghostbusters II (1989)
- By Dawn's Early Light (1990)
- HouseSitter (1992)
- The Powers That Be (1992)
- Addams Family Values (1993)
- Radioland Murders (1994)
- Chicago Hope (1994-1995)
- Dracula: Dead and Loving It (1995)
- Ally McBeal (1997-2002)
- Bean (film) (1997)
- Baby Geniuses (1999)
- Recess: School's Out (2001): Fenwick
- That Darn Car! (2002)
- Balto II: Wolf Quest (2002)
- Crazy Love (2003)
- Harvey Birdman Attorney at Law (2003-2007): X the Eliminator
- Breakin' All the Rules (2004)
- Danny Phantom (2004-2007): Sidney Poindexter (special guest)
- The Batman (2004-2008): Dr.Langstrom/Man-Bat
- Justice League Unlimited (2005): Chronos
- NUMB3RS (2005-2010)
- 24 (2007)
- 24: Redemption (2008)
- The Spectacular Spider-Man (2008-günümüz): Doktor Octopus
