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IMDbPro

Brennan Lee Mulligan

  • Actor
  • Writer
  • Producer
IMDbProStarmeterSee rank
Brennan Lee Mulligan in Dropout (2006)
Watch Official Trailer Season 1
Play trailer1:57
Parlor Room (2025– )
5 Videos
7 Photos
Brennan Lee Mulligan is an actor, comedian, writer, producer and showrunner, as well as a partner at the comedy streaming platform, Dropout. He is one of the most visible figures in the tabletop role playing space and executive produces, showruns and hosts Dropout's actual play tabletop show, Dimension 20, which recently sold out upwards of 20,000 tickets at Madison Square Garden in under five minutes.

In addition to his work on Dimension 20, Mulligan stars in the actual play podcast, Worlds Beyond Number, the most pre-launch subscribed podcast on Patreon to date and the #1 fiction podcast in the U.S. upon its release. Together with his wife, Izzy Roland, Mulligan also performs in Bigger! With Brennan and Izzy, a live improv show that has delighted audiences worldwide by transforming quirky real-life stories into hilarious improvised scenes. Mulligan is also a frequent improviser, collaborator and producer on other fan-favorite Dropout properties like Game Changer, Make Some Noise and Very Important People.

In addition to his work on Dimension 20, Mulligan expanded his role in the tabletop roleplaying universe by serving as Dungeon Master for Critical Role's celebrated campaigns Exandria Unlimited: Calamity and Exandria Unlimited: Divergence. In October of 2025, Mulligan will again join forces with Critical Role to serve as Dungeon Master for their forthcoming campaign.

Mulligan resides in Los Angeles.
BornJanuary 4, 1988
  • More at IMDbPro
    • Contact info
    • Agent info
    • Resume
BornJanuary 4, 1988
IMDbProStarmeterSee rank
  • View contact info at IMDbPro
  • Photos6

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    Known for

    Jasmine Bhullar, Aabria Iyengar, Carlos Luna, Isabella Roland, Freddie Wong, Emily Axford, Brennan Lee Mulligan, Danielle Radford, Hank Green, Jujubee, Jacob Wysocki, Rekha Shankar, Brian Murphy, Ally Beardsley, Zac Oyama, Siobhan Thompson, Ify Nwadiwe, Alex Song-Xia, Mike Trapp, Alaska Thunderfuck, Bob the Drag Queen, Monét X Change, Jasper William Cartwright, and Lou Wilson in Dimension 20 (2018)
    Dimension 20
    9.3
    TV Series
    • Little Hat
    • Game Master
    • Evan Kelmp
    • Tula
    • Bishop Raphaniel Charlock
    • Cpt. K. P. Hob
    • Zelda Donovan
    The St. Patrick's Battalion
    • Writer
      Upton Abbey (2012)
      Upton Abbey
      TV Series
      • Writer
      • 2012
      Zenith (2010)
      Zenith
      5.4
      • Transportation Department
      • 2010

      Credits

      Edit
      IMDbPro

      Actor



      • Taliesin Jaffe, Ashley Johnson, Sam Riegel, Travis Willingham, Laura Bailey, Liam O'Brien, Matthew Mercer, and Marisha Ray in Critical Role (2015)
        Critical Role
        9.0
        TV Series
        • Game Master
        • Dungeon Master
        • 2024–2025
      • Very Important People (2023)
        Very Important People
        8.3
        TV Series
        • Greg Excitement
        • Augbert
        • 2024–2025
      • Josh Ruben, Brennan Lee Mulligan, Jacob Wysocki, Ross Bryant, Zac Oyama, Kimia Behpoornia, Jiavani, Jeremy Culhane, Vic Michaelis, Jacquis Neal, Lou Wilson, and Anna Garcia in Make Some Noise (2022)
        Make Some Noise
        8.9
        TV Series
        • 2025
      • Critical Role: Extras (2015)
        Critical Role: Extras
        TV Series
        • Game Master
        • 2025
      • Isabella Roland in D(e)ad (2025)
        D(e)ad
        8.9
        • Owen
        • 2025
      • Jasmine Bhullar, Aabria Iyengar, Carlos Luna, Isabella Roland, Freddie Wong, Emily Axford, Brennan Lee Mulligan, Danielle Radford, Hank Green, Jujubee, Jacob Wysocki, Rekha Shankar, Brian Murphy, Ally Beardsley, Zac Oyama, Siobhan Thompson, Ify Nwadiwe, Alex Song-Xia, Mike Trapp, Alaska Thunderfuck, Bob the Drag Queen, Monét X Change, Jasper William Cartwright, and Lou Wilson in Dimension 20 (2018)
        Dimension 20
        9.3
        TV Series
        • Little Hat
        • Game Master
        • Evan Kelmp ...
        • 2018–2025
      • Wayne Brady's What If with Jonathan Mangum (2025)
        Wayne Brady's What If with Jonathan Mangum
        6.2
        TV Series
        • Brennan
        • 2025
      • Date Everything! (2025)
        Date Everything!
        8.4
        Video Game
        • Parker Bradley (voice)
        • 2025
      • Wildemount Wildlings (2025)
        Wildemount Wildlings
        8.0
        TV Mini Series
        • Padmund Pondhop
        • 2025
      • Exandria Unlimited (2021)
        Exandria Unlimited
        8.1
        TV Series
        • Game Master
        • 2022–2025
      • Brennan Lee Mulligan in Dimension 20: Time Quangle (2024)
        Dimension 20: Time Quangle
        7.0
        TV Mini Series
        • Dungeon Master
        • 2024
      • Jeremy Cobb, Olivia Kennedy, and Jasper William Cartwright in Three Black Halflings (2020)
        Three Black Halflings
        Podcast Series
        • Dr. Harold Jennings
        • 2024
      • Dropout Presents (2024)
        Dropout Presents
        8.5
        TV Series
        • Brennan Lee Mulligan
        • 2024
      • Godkiller: Balance (2024)
        Godkiller: Balance
        Podcast Series
        • Avaris Kerschel (voice)
        • 2024
      • The Disruptors (2024)
        The Disruptors
        5.7
        • 2024

      Writer



      • The St. Patrick's Battalion
        • screenplay
        • Development Unknown



      • Jasmine Bhullar, Aabria Iyengar, Carlos Luna, Isabella Roland, Freddie Wong, Emily Axford, Brennan Lee Mulligan, Danielle Radford, Hank Green, Jujubee, Jacob Wysocki, Rekha Shankar, Brian Murphy, Ally Beardsley, Zac Oyama, Siobhan Thompson, Ify Nwadiwe, Alex Song-Xia, Mike Trapp, Alaska Thunderfuck, Bob the Drag Queen, Monét X Change, Jasper William Cartwright, and Lou Wilson in Dimension 20 (2018)
        Dimension 20
        9.3
        TV Series
        • created by
        • 2018–2023
      • Andrew Barth Feldman, Celia Rose Gooding, Heath Saunders, Keisha Zollar, Alex Brightman, Sky Lakota-Lynch, Ryan J. Haddad, Aneesh Sheth, Alex Boniello, Rob McClure, Lou Gonzalez, Tyler Newhouse, and Isabelle McCalla in Foul Play (2023)
        Foul Play
        7.2
        TV Series
        • Writer
        • 2023
      • Dropout (2006)
        Dropout
        7.7
        TV Series
        • written by
        • writer (uncredited)
        • 2018–2019
      • Gods of Food (2019)
        Gods of Food
        7.9
        TV Series
        • Writer
        • 2019
      • Katy Davis, Nitya Vidyasagar, Raphael Chestang, and Ally Beardsley in Troopers (2019)
        Troopers
        7.4
        TV Series
        • Writer
        • 2019
      • Ify Nwadiwe in Um, Actually (2018)
        Um, Actually
        8.3
        TV Series
        • written by
        • 2018
      • Funhaus
        TV Mini Series
        • writer
        • creator (as Brennan Mulligan)
        • 2017
      • UCB Comedy Originals (2007)
        UCB Comedy Originals
        5.8
        TV Series
        • writer
        • 2016–2017
      • Ashley Skidmore and Brennan Lee Mulligan in Fallen for You (2017)
        Fallen for You
        8.2
        Short
        • created by
        • written by
        • 2017
      • Characters Welcome (2014)
        Characters Welcome
        8.3
        TV Series
        • writer
        • 2015
      • The Unfortunate Death of Major Andre (2013)
        The Unfortunate Death of Major Andre
        Short
        • Writer
        • 2013
      • Upton Abbey (2012)
        Upton Abbey
        TV Series
        • written by
        • 2012
      • Carter
        Short
        • story
        • 2009
      • Indifferent Times
        Short
        • Writer
        • 2009

      Producer



      • Isabella Roland in D(e)ad (2025)
        D(e)ad
        8.9
        • executive producer
        • 2025
      • Sam Reich in Game Changer (2019)
        Game Changer
        9.2
        TV Series
        • co-executive producer
        • 2025
      • Josh Ruben, Brennan Lee Mulligan, Jacob Wysocki, Ross Bryant, Zac Oyama, Kimia Behpoornia, Jiavani, Jeremy Culhane, Vic Michaelis, Jacquis Neal, Lou Wilson, and Anna Garcia in Make Some Noise (2022)
        Make Some Noise
        8.9
        TV Series
        • executive producer
        • 2023
      • Jasmine Bhullar, Aabria Iyengar, Carlos Luna, Isabella Roland, Freddie Wong, Emily Axford, Brennan Lee Mulligan, Danielle Radford, Hank Green, Jujubee, Jacob Wysocki, Rekha Shankar, Brian Murphy, Ally Beardsley, Zac Oyama, Siobhan Thompson, Ify Nwadiwe, Alex Song-Xia, Mike Trapp, Alaska Thunderfuck, Bob the Drag Queen, Monét X Change, Jasper William Cartwright, and Lou Wilson in Dimension 20 (2018)
        Dimension 20
        9.3
        TV Series
        • executive producer
        • 2019–2023
      • Upton Abbey (2012)
        Upton Abbey
        TV Series
        • assistant producer
        • 2012

      Production Department



      • Marc Maron: Thinky Pain (2013)
        Marc Maron: Thinky Pain
        7.3
        TV Special
        • production assistant
        • 2013
      • Bunk (2012)
        Bunk
        7.0
        TV Series
        • key production assistant
        • 2012

      Videos5

      Indifferent Times
      Full Movie 13:20
      Indifferent Times
      Official Trailer Season 1
      Trailer 1:57
      Official Trailer Season 1
      Official Trailer Season 1
      Trailer 1:57
      Official Trailer Season 1
      Official Trailer
      Trailer 1:54
      Official Trailer
      Trailer Season 1 [OV]
      Trailer 1:58
      Trailer Season 1 [OV]
      Season 3 Teaser
      Trailer 0:38
      Season 3 Teaser

      Personal details

      Edit
      • Official sites
        • Facebook
        • LinkedIn
      • Alternative names
        • Brennan Mulligan
      • Born
        • January 4, 1988
        • New York City, New York, USA
      • Spouse
        • Isabella RolandApril 1, 2023 - present (1 child)
      • Parents
        • Elaine Lee

      FAQ

      Powered by Alexa
      • How old is Brennan Lee Mulligan?
        37 years old
      • When was Brennan Lee Mulligan born?
        January 4, 1988
      • Where was Brennan Lee Mulligan born?
        New York City, New York, USA
      • What is Brennan Lee Mulligan known for?
        Upton Abbey, Zenith, The St. Patrick's Battalion, and Dimension 20
      • Is Brennan Lee Mulligan married?
        Yes, to Isabella Roland since April 1, 2023

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