Peter MacNicol

Full filmography

• All's Fair (2025) as Robert DeLancie
• Shell (2025) as Dr. Thaddeus Brand
• The Day the Earth Blew Up: A Looney Tunes Movie (2024) as The Invader (voice)
• Home Delivery (2024) as Howard Evans
• Our (Almost Completely True) Love Story (2023) as Psycho Date
• All Rise (2019) as Albert Campbell
• Secret of the Sundrop (2018) as Nigel the Advisor
• Rapunzel's Tangled Adventure (2017) as Nigel the Advisor (voice)
• Rapunzel's Tangled Adventure (2017) as Nigel (voice)
• A Series of Unfortunate Events (2017) as Ishmael
• CSI: Cyber (2015) as Simon Sifter
• Star Wars Rebels (2014) as Tseebo (voice)
• Marvel's Agents of S.H.I.E.L.D. (2013) as Professor Elliott Randolph
• Scooby-Doo! Stage Fright (2013) as Dewey Ottman (voices)
• Veep (2012) as Jeff Kane
• Doc McStuffins (2012) as Egghead (voice)
• The Mindy Project (2012) as Rabbi Adler
• Battleship (2012) as Secretary of Defense
• Game Change (2012) as Rick Davis
• Fairly Legal (2011) as Judge Smollet
• Batman: Arkham City (The Movie) (2011) as Mad Hatter
• Young Justice (2010) as Professor Ivo / M.O.N.Q.I. (voice)
• Young Justice (2010) as Professor Ivo / Amazo / M.O.N.Q.I. (voice)
• Young Justice (2010) as Professor Ivo (voice)
• Ben 10: Ultimate Alien (2010) as Oliver / Forever Knight #1 (voice)
• G.I. Joe: Renegades (2010) as Firefly (voice)
• Spider-Man: Re-Animated (2009) as Self
• The Spectacular Spider-Man (2008) as Otto Octavius (voice)
• The Spectacular Spider-Man (2008) as Otto Octavius / Doctor Octopus (voice)
• The Spectacular Spider-Man (2008) as Doctor Octopus (voice)
• The Spectacular Spider-Man (2008) as Master Planner / Otto Octavius (voice)
• The Spectacular Spider-Man (2008) as Master Planner (voice)
• The Spectacular Spider-Man (2008) as Master Planner / Doctor Octopus (voice)
• The Spectacular Spider-Man: Attack of the Lizard (2008) as Otto Octavius/Doctor Octopus (voice)
• The Big Bang Theory (2007) as Robert Wolcott
• Grey's Anatomy (2005) as Robert Stark
• American Dad! (2005) as Old Man Hanson (voice)
• American Dad! (2005) as Santa's Elf (voice)
• American Dad! (2005) as Angel (voice)
• Numb3rs (2005) as Larry Fleinhardt
• Numb3rs (2005) Writer
• Numb3rs (2005) Story
• Stuart Little 3: Call of the Wild (2005) as Troopmaster (voice)
• Boston Legal (2004) as Dr. Sydney Field
• Danny Phantom (2004) as Sidney Poindexter (voice)
• Justice League Unlimited (2004) as David Clinton (voice)
• The Batman (2004) as Langstrom (voice)
• Breakin' All the Rules (2004) as Philip Gascon
• The Lyon's Den (2003)
• Balto: Wolf Quest (2002) as Muru (voice)
• 24 (2001) as Tom Lennox
• Recess: School's Out (2001) as Fenwick (voice)
• Boston Public (2000) Director
• Buzz Lightyear of Star Command (2000) as Major (voice)
• Harvey Birdman, Attorney at Law (2000)
• Harvey Birdman, Attorney at Law (2000) as X the Eliminator (voice)
• Harvey Birdman, Attorney at Law (2000) as X, the Eliminator (voice)
• The Pooch and the Pauper (2000) as Liberty (voice)
• Baby Geniuses (1999) as Dan
• Snowden's Christmas (1999) as Snowden (voice)
• The Secret of NIMH 2: Timmy to the Rescue (1999) as Narrator (voice)
• Olive, the Other Reindeer (1999) as Fido (voice)
• The Wild Thornberrys (1998) as Raju / Monkey (voice)
• CatDog (1998) as Runt (voice)
• Silencing Mary (1998) as Lawrence Dixon
• The Angry Beavers (1997)
• Ally McBeal (1997) as John Cage
• Ally McBeal (1997) Director
• Ally McBeal (1997) Writer
• Bean (1997) as David Langley
• Mojave Moon (1996) as Tire Repairman
• Abducted: A Father's Love (1996) as Roy Dowd
• Dracula: Dead and Loving It (1995) as Thomas Renfield
• Chicago Hope (1994) as Alan Birch
• Roswell (1994) as Lewis Rickett
• Radioland Murders (1994) as Son Writer
• Addams Family Values (1993) as Gary Granger
• Housesitter (1992) as Marty
• The Powers That Be (1992) as Bradley Grist
• Hard Promises (1992) as Stuart
• By Dawn's Early Light (1990) as Sedgwick
• Tales from the Crypt (1989) as Austin Haggard (segment "Let the Punishment Fit the Crime")
• Ghostbusters II (1989) as Dr. Janosz Poha
• American Blue Note (1989) as Jack Solow
• Voices & Visions: Walt Whitman (1988) as Narrator
• The Days and Nights of Molly Dodd (1987) as Steve Cooper
• Heat (1986) as Cyrus Kinnick
• Johnny Bull (1986) as Joe Kovacs
• The Boy Who Left Home to Find Out About the Shivers (1984) as Martin
• Cheers (1982) as Mario
• Faerie Tale Theatre (1982) as Martin
• Sophie's Choice (1982) as Stingo
• Dragonslayer (1981) as Galen
• Floss as Dr. Rivus