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Peter MacNicol
Peter MacNicol
Peter MacNicol
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Peter MacNicol (born April 10, 1954) is an American actor. He received a Theatre World Award for his 1981 Broadway debut in the play Crimes of the Heart. His film roles include Galen in Dragonslayer (1981), Stingo in Sophie's Choice (1982), Janosz Poha in Ghostbusters II (1989), Gary Granger in Addams Family Values (1993), Renfield in Dracula: Dead and Loving It (1995), and David Langley in Bean (1997).

Key Information

MacNicol won the Primetime Emmy Award for Outstanding Supporting Actor in a Comedy Series in 2001 for his role as the eccentric lawyer John Cage in the FOX comedy-drama Ally McBeal (1997–2002). He is also known for his television roles as attorney Alan Birch in the medical drama Chicago Hope (1994–1998), X the Eliminator on Harvey Birdman, Attorney at Law (2000–2007), physicist Dr. Larry Fleinhardt on the CBS crime drama Numbers (2005–2010), Tom Lennox in the sixth season of action-thriller 24 (2007), Doctor Octopus in The Spectacular Spider-Man (2008–09), Dr. Stark on Grey's Anatomy (2010–11), Jeff Kane on the political satire series Veep (2016–2019), and Nigel the Advisor on Tangled: The Series (2017–2020). He also voiced the Mad Hatter in the Batman: Arkham video game series.[2] He also played FBI Deputy Director Simon Sifter during season one of CSI: Cyber (2015–16).

Early life

[edit]

MacNicol was born on April 10, 1954, in Dallas, Texas, the youngest of five children of Barbara, a homemaker, and John MacNicol, a corporate executive who became an Episcopal priest later in life.[3][4]

Career

[edit]

MacNicol performed at the Guthrie Theater in Minneapolis for two seasons from 1978 to 1979. He appeared in productions, which included Hamlet and The Pretenders. He made his New York debut in the 1980 off-Broadway play, Crimes of the Heart. The production then moved to Broadway in 1981, and he won the Theatre World Award.[5] It was during this production that a casting agent noticed him and auditioned him for a role in the film, Sophie's Choice. In 1981 he landed the starring role in his first film, Dragonslayer, opposite Ralph Richardson.[6]

In 1987, MacNicol starred in the Trinity Repertory Company's original production of the stage adaptation of Robert Penn Warren's All the King's Men, which first appeared at the Dallas Theater Center. The adaptation was developed in consultation with the author.[7]

Among his other stage credits is the Broadway production of Black Comedy/White Lies. He has appeared in repertory theater, including the New York Shakespeare Festival where he played title roles in Richard II and Romeo and Juliet; and in Twelfth Night, Rum and Coke and Found a Peanut.[8][6]

In film, he plays the naive Southern writer who falls in love with Meryl Streep in Sophie's Choice, the museum curator Janosz Poha in Ghostbusters II, and overenthusiastic camp director Gary Granger alongside future Numbers co-star David Krumholtz in Addams Family Values.[6] Other film credits include the films Housesitter and American Blue Note.

From 1992 to 1993 MacNicol starred opposite John Forsythe, Holland Taylor, David Hyde Pierce and Joseph Gordon-Levitt as press secretary Bradley Grist in the political television comedy The Powers That Be.[9] In addition, he played Mario, a hotel receptionist, in the 1993 Cheers episode "Look Before You Sleep".[10][11]

In 1994 MacNicol played the role of Alan Birch for the first season and part of the second season of Chicago Hope once creator David E. Kelley departed. He later rejoined Kelley in 1997 by taking a role on another TV series, Ally McBeal, as a main guest star from Season 1 to Season 4 and a recurring character in Season 5. MacNicol is well known for his Ally McBeal performance as eccentric attorney John Cage, for which he won an Emmy Award for Outstanding Supporting Actor in a Comedy Series in 2001. From 2005 to 2010, he starred in the drama Numbers as physicist Dr. Larry Fleinhardt, taking a brief break from the show to perform as Tom Lennox in the sixth season of the hit FOX show 24. MacNicol reprised his role as Lennox in the film 24: Redemption.

MacNicol has lent his voice to several comic book supervillains: Dr. Kirk Langstrom / Man-Bat in The Batman, David Clinton / Chronos in Justice League Unlimited, Professor Ivo in Young Justice, Dr. Otto Octavius / Doctor Octopus in The Spectacular Spider-Man, X The Eliminator in Harvey Birdman, Attorney at Law and the Mad Hatter in the video games Batman: Arkham City, Batman: Arkham Origins, and Batman: Arkham Knight. He also voiced Firefly in G.I. Joe: Renegades.[12]

MacNicol played Dr. Stark, a pediatric surgeon, on Grey's Anatomy.[13]

MacNicol was nominated for an Emmy for outstanding guest actor in the fifth season of Veep; however, his nomination was rescinded because he appeared in "too many of the show’s episodes; the rules require that a guest actor nominee be in less than half of a season."[14] Although MacNicol qualified when his entry was submitted, he later appeared briefly in one more episode. He was nominated again in the same category for the seventh season of Veep.[15]

Personal life

[edit]

MacNicol has been married to Martha Cumming since 1986.

Filmography

[edit]

Film

[edit]
Year Title Role Notes
1981 Dragonslayer Galen Bradwarden
1982 Sophie's Choice Stingo
1986 Heat Cyrus Kinnick
American Blue Note Jack Solow
1989 Ghostbusters II Dr. Janosz Poha
1991 Hard Promises Stuart
1992 Housesitter Marty
1993 Addams Family Values Gary Granger
1994 Radioland Murders Son Writer
1995 Dracula: Dead and Loving It Thomas Renfield
1996 Mojave Moon Tire Repairman
1997 Bean David Langley
1998 The Secret of NIMH 2: Timmy to the Rescue Narrator (voice) Direct-to-video
1999 Baby Geniuses Dan Bobbins
2001 Recess: School's Out Fenwick (voice) [16]
2002 Balto II: Wolf Quest Muru (voice) Direct-to-video[16]
2004 Breakin' All the Rules Philip Gascon
2006 Stuart Little 3: Call of the Wild Troopmaster Bickle (voice) Direct-to-video[16]
2012 Battleship Secretary of Defense
2013 Scooby-Doo! Stage Fright Dewey Ottoman (voice) Direct-to-video[16]
2021 Our (Almost Completely True) Love Story Psycho Date
2024 Shell Dr. Thaddeus Brand [17]
The Day the Earth Blew Up: A Looney Tunes Movie The Invader (voice) [18]
TBA Home Delivery Howard Evans

Television

[edit]
Year Title Role Notes
1984 Faerie Tale Theatre Martin Episode: "The Boy Who Left Home to Find Out About the Shivers"
1990 By Dawn's Early Light Sedgwick Television film
1992–1993 The Powers That Be Bradley Grist 20 episodes
1993 Cheers Mario Episode: "Look Before You Sleep"
1994 Tales from the Crypt Austin Haggard Episode: "Let the Punishment Fit the Crime"
1994–1995, 1998 (guest) Chicago Hope Alan Birch 31 episodes
Viewers for Quality Television Award for Best Supporting Actor in a Quality Drama Series
Nominated—Screen Actors Guild Award for Outstanding Performance by an Ensemble in a Drama Series (1995–96)
1996 The Oz Kids Ork (voice) [16]
1997–2002 Ally McBeal John Cage 103 episodes
Writer - Episode: "All of Me"
Director - 3 episodes
Primetime Emmy Award for Outstanding Supporting Actor in a Comedy Series (2001)
Screen Actors Guild Award for Outstanding Performance by an Ensemble in a Comedy Series (1998)
Viewers for Quality Television Award for Best Supporting Actor in a Quality Comedy Series (1999)
Nominated—Primetime Emmy Award for Outstanding Supporting Actor in a Comedy Series (1999-2000)
Nominated—Satellite Award for Best Supporting Actor – Television Series (2002)
Nominated—Screen Actors Guild Award for Outstanding Performance by an Ensemble in a Comedy Series (2001–02)
Nominated—Screen Actors Guild Award for Outstanding Performance by a Male Actor in a Comedy Series (1999-2001)
Nominated—Viewers for Quality Television Award for Best Supporting Actor in a Comedy Series (1998, 2000)
1999 The Angry Beavers Kid Friendly (voice) Episode: "The Legend of Kid Friendly"[16]
1999 Olive, the Other Reindeer Fido (voice) Television film
2000 The Wild Thornberrys Raju (voice) Episode: "Monkey See, Monkey Don't"[16]
2000 Buzz Lightyear of Star Command Major (voice) 2 episodes[16]
2003–2007 Harvey Birdman, Attorney at Law X the Eliminator (voice) 14 episodes[16]
2004–2005 Danny Phantom Sidney Poindexter (voice) 2 episodes[16]
2004–2008 The Batman Kirk Langstrom (voice) 3 episodes[16]
2005 Justice League Unlimited Chronos (voice) 2 episodes[16]
2005–2010 Numbers Dr. Larry Fleinhardt 94 episodes
Writer - 2 episodes
2006 Boston Legal Dr. Sydney Field Episode: "Race Ipsa"
Director - Episode: "Chapter Forty-Eight"
2007 24 Tom Lennox 24 episodes
2008 24: Redemption Television film
2008–2009 The Spectacular Spider-Man Doctor Octopus (voice) 12 episodes[16]
2010 Ben 10: Ultimate Alien Oliver, Mr. Webb, Forever Knight (voice) 2 episodes
2010–2011 Grey's Anatomy Dr. Robert Stark 7 episodes
2011 Young Justice Professor Ivo, Amazo, MONQIs (voice) 2 episodes[16]
2011 G.I. Joe: Renegades Firefly (voice) Episode: "Homecoming"[16]
2011 Fairly Legal Judge Smollet Episode: "Coming Home"
2012 Game Change Rick Davis Television film
2013 Necessary Roughness Dr. Gunner 3 episodes
2013–2015 Agents of S.H.I.E.L.D. Professor Elliot Randolph 2 episodes
2014 The Mindy Project Rabbi David Adler Episode: "An Officer and a Gynecologist"
2014 Star Wars Rebels Tseebo (voice) 2 episodes[16]
2014–2016 American Dad! Angel, Old Man Hanson (voice) 2 episodes
2015 CSI: Cyber Simon Sifter Main cast; 13 episodes
2016–2019 Veep Jeff Kane 9 episodes
Nominated—Primetime Emmy Award for Outstanding Guest Actor in a Comedy Series (2019)
Previous Primetime Emmy Award nomination revoked due to rule technicality[19]
2017–2020 Tangled: The Series Nigel the Advisor (voice) Main cast[16]
2018 The Big Bang Theory Dr. Robert Wolcott Episode: "The Reclusive Potential"
2019 A Series of Unfortunate Events Ishmael Episode: "The End"
2020–2021 All Rise Judge Campbell 9 episodes
2022 Birdgirl Mr. Claude (voice) Episode: "The Wanky"

Video games

[edit]
Year Title Role
2008 Harvey Birdman: Attorney at Law X the Eliminator
2011 Batman: Arkham City Mad Hatter
2013 Batman: Arkham Origins
2015 Batman: Arkham Knight

References

[edit]
[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia

Peter MacNicol

View on Grokipedia
from Grokipedia
Peter MacNicol (born April 10, 1954) is an American actor renowned for his versatile portrayals across theater, film, and television, often embodying quirky, intellectual, or eccentric characters. Born in , , as the youngest of five children, MacNicol trained at the prestigious in , honing his craft in regional theater before breaking into professional acting. His career spans over four decades, with standout roles that earned him critical acclaim and a Primetime Emmy Award, establishing him as a reliable supporting player in both dramatic and comedic genres. MacNicol's breakthrough came on Broadway with his 1981 debut in the Pulitzer Prize-winning play , for which he received a Theatre World Award recognizing his promising talent. Transitioning to film, he made his screen debut starring as the young apprentice wizard Galen in the fantasy adventure (1981), followed by a pivotal role as the aspiring writer Stingo in Alan J. Pakula's drama (1982), opposite and . He further showcased his range in supporting parts, including the hapless art restorer Janosz Poha in Ivan Reitman's (1989), a comedic highlight in the supernatural franchise. On television, MacNicol achieved widespread recognition for his role as the socially awkward attorney Alan Birch on the medical drama (1994–1995; guest 1998), earning multiple ensemble award nominations. His portrayal of the idiosyncratic John Cage on the legal comedy (1997–2002) became his most iconic, over five seasons and culminating in a 2001 Primetime Emmy Award for Outstanding in a Series, along with a Award for ensemble performance. Later series roles included the mathematician Dr. on Numb3rs (2005–2010) and the political operative Tom Lennox on 24 (2007), further demonstrating his adeptness at blending intellect with intensity. MacNicol has continued to appear in guest capacities on shows like , receiving additional Emmy nominations for his comedic timing. As of 2025, he continues to work in film, , and .

Early life and education

Family and childhood

Peter MacNicol was born on April 10, 1954, in , , as the youngest of five children born to Barbara, a homemaker, and John, a corporate executive. He was born Peter Johnson but adopted the surname MacNicol as his professional name around 1980. His father later transitioned to a career as an Episcopal priest, introducing religious elements into the family dynamics during MacNicol's upbringing. With four older siblings, MacNicol grew up in a large family household in Dallas that provided a supportive environment fostering his early interests, which later directed him toward formal acting education.

Education and early training

MacNicol graduated from MacArthur High School in Irving, Texas, in 1972. Following high school, he enrolled at the University of Dallas for a brief period before transferring to the University of Minnesota, where he studied drama. During his time at the , MacNicol received hands-on training through two seasons as a member of the repertory company at the in , one of the leading regional theaters in the United States, which provided him with essential practical experience in professional stage production. Upon completing his university studies, MacNicol relocated to in 1980 to launch his professional acting career.

Acting career

Theater work

MacNicol began his professional stage career at the in , where he performed for two seasons from 1978 to 1979 in productions including and . Following this regional experience, he moved to , participating in early auditions and ensemble performances that led to his debut. His breakthrough came with the role of Barnette Lloyd in Beth Henley's , which premiered at the on December 9, 1980, before transferring to Broadway at the on November 4, 1981. For this performance, MacNicol earned the Theatre World Award, recognizing his promising debut on the Broadway stage. Throughout the , MacNicol continued to build his theater profile with notable Broadway appearances, including the role of Rick Steadman in Larry Shue's The Nerd at the Theatre from March 22, 1987, to January 10, 1988. As his screen career gained momentum in the late and early 1990s, he made occasional returns to , such as portraying Brindsley Miller in Peter Shaffer's (paired with a revival of White Liars) at the Criterion Center Stage Right in 1993. This body of stage work honed MacNicol's versatile acting style, which later enhanced his adaptability across film and television roles.

Film roles

Peter MacNicol made his film debut in 1981 as the young sorcerer's apprentice Galen in the fantasy adventure , directed by Matthew Robbins, which marked his entry into the genre of epic cinema. His breakthrough role came the following year in , where he portrayed the aspiring writer Stingo opposite Meryl Streep's titular character, earning critical acclaim for his sensitive depiction of youthful idealism and emotional turmoil in Alan J. Pakula's Holocaust drama. Throughout the 1980s and 1990s, MacNicol frequently took on quirky supporting roles in comedies and genre films, including the bumbling art restorer Janosz Poha in (1989), directed by , and the earnest camp counselor Gary Granger in (1993), helmed by , showcasing his talent for eccentric, intellectual characters amid ensemble casts. In later decades, MacNicol continued to appear in family-oriented and sci-fi tinged projects, voicing the hapless Troopmaster Bickle in the animated film Stuart Little 3: Call of the Wild (2005), while transitioning to supporting parts in independent features such as the role of Dr. Thaddeus Brand in the horror-comedy Shell (2024), directed by and starring , and Howard Evans in the ensemble comedy (2025), directed by Thom Harp. Over his film career, MacNicol has often embodied neurotic, bookish figures in both comedic and dramatic contexts, contributing to a versatile resume that complements his television work without overshadowing it.

Television roles

MacNicol began his television career with several guest appearances in the 1980s and early , including roles on shows such as Quantum Leap, where he appeared in both the pilot episode "Genesis" in 1989 and the series finale "" in 1993, as well as The Facts of Life and Spencer: For Hire. These early spots showcased his versatility in supporting comedic and dramatic parts, paving the way for more prominent series work. His breakthrough in television came with the role of attorney Alan Birch on the medical drama from 1994 to 1998, where he portrayed the hospital's cunning in-house lawyer, earning two Primetime Emmy nominations for Outstanding Supporting Actor in a Drama Series in 1995 and 1996. The character, often nicknamed "The Eel" for his slippery demeanor, allowed MacNicol to blend humor with ethical dilemmas in the high-stakes environment of a Chicago hospital. MacNicol achieved greater acclaim for his portrayal of the eccentric lawyer John Cage on Ally McBeal from 1997 to 2002, a role that highlighted his knack for quirky, introspective characters prone to unusual courtroom tactics and personal phobias. For this performance, he won the Primetime Emmy Award for Outstanding Supporting Actor in a Comedy Series in 2001, following nominations in 1999 and 2000. His work on the series, created by David E. Kelley, contributed to its cultural impact through memorable episodes exploring vulnerability and absurdity in legal practice. In the mid-2000s, MacNicol played Dr. Larry Fleinhardt, a brilliant astrophysicist and mentor to the on Numb3rs from to , emphasizing his ability to convey intellectual depth and eccentric genius in a procedural crime drama. The role involved applying mathematical theories to real-world investigations, drawing on Fleinhardt's philosophical outlook and close friendship with mathematician . Later in his career, MacNicol took on notable guest and recurring arcs, including Tom Lennox, the ambitious White House Chief of Staff on season 6 of 24 in 2007, a character who navigated political intrigue and moral ambiguity during a national crisis. He reprised the role in the 2008 television film 24: Redemption. On Veep from 2012 to 2019, he appeared as the manipulative political operative Jeff Kane in multiple episodes, bringing sharp comedic timing to the HBO satire's ensemble. MacNicol also recurred as Judge Albert Campbell on All Rise from 2020 to 2021, portraying a seasoned judge in the Los Angeles court system across nine episodes. More recent brief appearances include Dr. Robert Stark, a pediatric , on Grey's Anatomy in seasons 7 and 8 (2010–2011), and Dr. Albert Gunner on Necessary Roughness in 2013, where he guest-starred in three episodes as a sports . In 2025, MacNicol appeared in the Hulu series All's Fair, a legal created by Ryan Murphy. These roles underscored his continued demand for authoritative yet nuanced supporting performances in ensemble-driven series.

Voice acting and other media

Peter MacNicol has demonstrated significant versatility in voice acting, particularly in animated television series and films, where his distinctive, often manic delivery has brought eccentric characters to life. Later, he voiced the brilliant but unhinged Doctor Octopus (Dr. Otto Octavius) in The Spectacular Spider-Man (2008), contributing to the series' acclaimed adaptation of Marvel villains. His animated film work includes the role of The Invader in The Day the Earth Blew Up: A Looney Tunes Movie (2024), where his performance added to the film's chaotic humor alongside stars like Eric Bauza. In video games, MacNicol's voice work has been equally impactful, most notably as the Mad Hatter in the Batman: Arkham series, including Batman: Arkham City (2011), Batman: Arkham Origins (2013), and Batman: Arkham Knight (2015). These motion-capture performances highlighted his skill in conveying psychological depth through audio alone, enhancing the immersive storytelling of Rocksteady Studios' titles. He also provided voices for other projects, such as Doctor Octopus in Spider-Man: Web of Shadows (2008) and Professor Ivo in the Young Justice TV series (2010). Beyond animation and gaming, MacNicol has narrated numerous audiobooks, leveraging his theatrical background for engaging interpretations of literature. Notable examples include his full-cast narration of Dragons of Autumn Twilight (1990), the first novel, and the Shiloh Trilogy by (2015 release), where his warm, expressive style complemented the young adult narratives. In October 2025, MacNicol signed with Innovative Artists Entertainment for representation in theatrical and literary fields, signaling expanded opportunities in voice and audio projects. Throughout his later career, MacNicol has increasingly focused on , allowing greater flexibility compared to on-camera roles while capitalizing on his chameleon-like adaptability across genres. This shift has enabled him to contribute to diverse projects, from animations to fantasy audiobooks, maintaining his presence in entertainment without the demands of physical production.

Awards and nominations

Theater awards

Peter MacNicol received the Theatre World Award in 1982 for his performance as Barnette Lloyd in the Broadway production of , recognizing his outstanding debut on the Great White Way. This accolade, presented annually to promising newcomers, highlighted MacNicol's early talent following the play's transfer from in 1981 to Broadway in late 1981, where it ran for over 500 performances. The award underscored his ability to portray the earnest young lawyer with nuance, contributing to the production's critical acclaim and win for drama. While MacNicol did not secure additional major theater honors in the 1980s, the visibility from and the Theatre World Award propelled his transition to film, securing his debut lead role as the apprentice wizard in (1981). This early stage recognition established a foundation for his broader career, paving the way for later television achievements, including a Primetime Emmy Award.

Television awards

Peter MacNicol's television career garnered several prestigious nominations and one key win from major industry awards bodies, particularly highlighting his supporting roles in ensemble dramas and comedies during the and early . For his role as Alan Birch on (1994–1995), he won the 1995 Q Award for Best Supporting Actor in a Quality Series. He also contributed to the ensemble's (SAG) Award nominations for Outstanding Performance by an Ensemble in a Drama Series in 1995 and 1996. His standout recognition came for portraying the idiosyncratic attorney John Cage on Ally McBeal, where he won the Primetime Emmy Award for Outstanding in a Comedy Series at the 53rd Annual ceremony in 2001. He had previously been nominated in the same category for the role in 1999 and 2000, underscoring his consistent impact on the series. The Ally McBeal cast, including MacNicol, also received multiple (SAG) Award nominations for Outstanding Performance by an Ensemble in a Comedy Series from 1998 to 2001, reflecting the show's collaborative acclaim. Later roles brought additional Emmy nods: in the 2010s, MacNicol's work on Veep as the sharp-tongued political operative Jeff Kane led to a 2019 Primetime Emmy nomination for Outstanding Guest Actor in a Comedy Series for the episode "Oslo," highlighting his continued versatility in satirical roles. A prior 2016 nomination in the same category for Veep's fifth season was rescinded by the Television Academy after determining he appeared in more than the allowable episodes for guest status. The Veep ensemble won the SAG Award for Outstanding Performance by an Ensemble in a Comedy Series in 2018. Post-2010s, MacNicol has not received further major television award nominations, though his guest appearances on shows like The Big Bang Theory and Grey's Anatomy sustained his reputation for memorable supporting turns.

Personal life

Marriage and family

Peter MacNicol has been married to Martha Sue Cumming, a former executive director of the 52nd Street Project—a theater program for underprivileged children in —since October 11, 1986. The couple has maintained a low-profile life centered in . MacNicol and his wife are committed to privacy regarding their personal affairs, rarely sharing details about their home life in public interviews or appearances. The couple has no children.

Privacy and public image

Peter MacNicol is recognized for his deliberate avoidance of tabloid attention, consistently steering clear of media discussions about his private affairs throughout his career. In interviews, he rarely delves into personal matters, instead emphasizing his professional journey and dedication to . For example, in a 2001 career retrospective interview featured in the Foundation's Legacy Collection and released in 2025, MacNicol shared insights on his —such as the belief that the best advice is discovered through experience—and recounted stories from roles like and , without any personal revelations. This approach has shaped his public image as a family-oriented who values craft over celebrity, as evidenced by his expressed disinterest in fame-driven pursuits like appearing on magazine covers. Despite the intense spotlight from high-visibility work on (1997–2002), MacNicol has upheld these boundaries in the decades since, fostering a reputation for quiet professionalism. His enduring marriage since 1986 underscores the stable personal foundation that supports this low-key lifestyle.

Filmography

Film

YearTitleRoleDirector
1981GalenMatthew Robbins
1982Stingo
1986Cyrus KinnickDick Richards
1989Janosz Poha
1989American Blue NoteJackRalph Tooroff
1991Hard PromisesStuartMartin Davidson
1992Marty
1993Gary Granger
1994Max
1995Dracula: Dead and Loving ItR.M. Renfield
1997David Langley
1999Dan
2000The Adventures of Rocky and BullwinklePockmahacontestee
2001Recess: School's OutPrincipal Fenwick (voice)Chuck Sheetz
2004Philip GasconDaniel Taplitz
2012U.S. Secretary of Defense
2021Our (Almost Completely True) Love StoryPsycho DateAlex J. Johnson
2024ShellDr. Thaddeus BrandKate Dolan
2024The Day the Earth Blew Up: A Looney Tunes MovieThe Invader (voice)Pete Browngardt
2025Howard EvansN/A
All credits and details sourced from .

Television

Peter MacNicol began his television career in the mid-1980s with guest appearances and TV movies, gradually transitioning to recurring and lead roles in prominent series throughout the and beyond. His credits include a mix of dramatic, comedic, and voice work across network and cable programming. The following table lists his television credits chronologically, including series, guest spots, specials, and TV movies, with details on roles and episode counts where applicable for recurring or regular appearances.
Year(s)TitleRoleEpisodes/Notes
1986Johnny BullJoe KovacsTV movie
1987Days and Nights of Molly DoddSteve CooperGuest role, 1 episode
1990By Dawn's Early LightSedgwickTV movie
1994–1995; 1998Chicago HopeDr. Alan BirchMain role seasons 1–2; guest season 5, 31 episodes
1996Abducted: A Father's LoveRoy DowdTV movie
1997–2002Ally McBealJohn CageSeries regular, 103 episodes
1998Silencing MaryLawrence DixonTV movie
2000–2007Harvey Birdman, Attorney at LawHarvey Birdman (voice)Series regular, 39 episodes
2001The Ponder HeartUncle DanielTV movie
2005–2010Numb3rsDr. Larry FleinhardtRecurring, 93 episodes
200724Tom LennoxRecurring, 24 episodes (season 6)
200824: RedemptionTom LennoxTV movie
2010–2011Grey's AnatomyDr. Noah StarkRecurring, 5 episodes
2011Young JusticeProfessor Ivo (voice)Guest voice roles, 2 episodes
2012Game ChangeRick DavisTV movie
2012–2019VeepJeff KaneRecurring, 14 episodes (seasons 5–7)
2013The Big Bang TheoryDr. Oliver LorvisGuest, 1 episode
2013–2015Agents of S.H.I.E.L.D.Professor Elliot RandolphRecurring, 4 episodes
2014Star Wars RebelsTseebo (voice)Guest voice roles, 2 episodes
2014–2016American Dad!Various (voice)Guest voice roles
2015CSI: CyberSimon SifterMain role, season 1, 13 episodes
2015–2016The Mindy ProjectDr. Louis BermanRecurring, 3 episodes
2017–2020Rapunzel's Tangled AdventureNigel (voice)Recurring, 15 episodes
2019A Series of Unfortunate EventsDr. Montgomery MontgomeryGuest, 2 episodes
2020–2021All RiseJudge Carl LomaxRecurring, 18 episodes
This list highlights his versatility in live-action dramas like 24 and comedies like , as well as animated series. MacNicol's television work often featured eccentric or characters, contributing to his reputation as a .

Video games

Peter MacNicol has contributed voice work to a select number of video games, often reprising or embodying eccentric characters in superhero-themed titles. His roles highlight his versatility in delivering manic and performances through voice alone. In 2008, MacNicol voiced X the Eliminator, a parody villain, in the adventure game Harvey Birdman: Attorney at Law, based on the Adult Swim animated series. He reprised his live-action role from Ghostbusters II by voicing Dr. Janosz Poha in Ghostbusters: The Video Game (2009), assisting the team's supernatural investigations in a narrative set after the second film. MacNicol's most prominent video game contributions came in the Batman: Arkham series, where he voiced the Mad Hatter (Jervis Tetch), a deranged inventor obsessed with mind control and Alice in Wonderland motifs. He first portrayed the character in Batman: Arkham City (2011), delivering taunting riddles and hypnotic threats during Batman's Gotham confrontations. His performance returned in Batman: Arkham Origins (2013), appearing in a side mission involving a twisted tea party scheme. MacNicol uncreditedly voiced the Mad Hatter again in Batman: Arkham Knight (2015), contributing to the character's holographic taunts and DLC appearances. Archival audio from his earlier recordings was used for the Mad Hatter in the remastered collection Batman: Return to Arkham (2016). These credits represent the extent of MacNicol's documented work as of 2025, extending his expertise from into .

References

  1. https://www.tvguide.com/celebrities/peter-macnicol/bio/3030203928/
  2. https://www.empireonline.com/people/peter-macnicol/
  3. https://www.infoplease.com/biographies/art-entertainment/peter-macnicol
  4. https://www.fandango.com/people/peter-macnicol-411633/biography
  5. https://www.imdb.com/name/nm0001493/
  6. https://deadline.com/2025/10/peter-macnicol-signs-innovative-artists-entertainment-1236595442/
  7. https://ethnicelebs.com/peter-macnicol
  8. http://www.filmreference.com/film/3/Peter-MacNicol.html
  9. https://www.tvinsider.com/people/peter-macnicol/
  10. https://www.ebsco.com/research-starters/biography/peter-macnicol
  11. https://www.worthpoint.com/worthopedia/ally-mcbealpeter-macnicol-played-4912805660
  12. https://www.nytimes.com/1981/09/25/movies/peter-macnicol-captures-key-role-in-sophie-s-choice.html
  13. https://www.nytimes.com/1987/06/28/theater/a-young-american-dons-richard-ii-s-crown.html
  14. https://playbill.com/production/crimes-of-the-heart-john-golden-theatre-vault-0000008401
  15. https://www.ibdb.com/broadway-production/the-nerd-4445
  16. https://www.ibdb.com/broadway-production/white-liars-black-comedy-4573
  17. https://www.nytimes.com/1982/12/17/arts/he-gets-wrapped-up-in-other-people-s-lives.html
  18. https://www.imdb.com/title/tt0084707/
  19. https://www.imdb.com/title/tt12706836/fullcredits
  20. https://www.rottentomatoes.com/celebrity/peter_macnicol
  21. https://www.tvguide.com/celebrities/peter-macnicol/credits/3030203928/
  22. https://www.imdb.com/title/tt0108724/characters/nm0001493
  23. https://www.televisionacademy.com/awards/nominees-winners/2001/outstanding-supporting-actor-in-a-comedy-series
  24. https://www.imdb.com/title/tt0433309/characters/nm0001493
  25. https://www.tvmaze.com/characters/87192/numb3rs-dr-larry-fleinhardt
  26. https://www.imdb.com/title/tt0285331/characters/nm0001493
  27. https://www.imdb.com/title/tt10329042/characters/nm0001493
  28. https://greysanatomy.fandom.com/wiki/Peter_MacNicol
  29. https://www.behindthevoiceactors.com/Peter-MacNicol/
  30. https://www.amazon.com/The-Complete-Shiloh-Trilogy-audiobook/dp/B00XD7G1MI
  31. https://www.allamericanspeakers.com/celebritytalentbios/Peter%2BMacNicol/401218
  32. https://www.ibdb.com/broadway-production/crimes-of-the-heart-4138
  33. https://www.nytimes.com/1981/11/06/theater/it-was-a-victory-party-for-crimes-of-the-heart.html
  34. https://www.imdb.com/name/nm0001493/awards/
  35. https://www.sagawards.org/awards/nominees-and-recipients/2nd-annual-screen-actors-guild-awards
  36. https://www.sagawards.org/awards/nominees-and-recipients/6th-annual-screen-actors-guild-awards
  37. https://variety.com/2016/tv/news/peter-macnicol-emmy-awards-guest-actor-comedy-veep-1201818773/
  38. https://www.imdb.com/name/nm0001493/bio/
  39. https://people.com/real-life-loves-of-the-cast-of-numb3rs-8777920
  40. https://www.youtube.com/watch?v=j4xdh638eR4
  41. https://www.imdb.com/title/tt1568322/characters/nm0001493
  42. https://www.imdb.com/title/tt2842418/characters/nm0001493
  43. https://www.imdb.com/title/tt5734258/characters/nm0001493
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