Brennan Lee Mulligan is an actor and writer known for Dimension 20, College Humor, and Strong Female Protagonist.

Filmography

• 2026Crossed Animals — Thanks
• 2026Dimension 20 Live: Viva Más Vegas — Game Master, Creator, Executive Producer, Writer
• 2026Muppet Treasure Scriptland — Long John Silver
• Toonout — Wealwell Gotch (voice), Additional Writing, Thanks
• 2026Wealwell's Guide to Reposed Standing — Wealwell Gotch (voice), Additional Writing
• Ask Hank Anything
• 2025D(e)ad — Owen from Science Care, Executive Producer
• 2025Dimension 20 Live: Battle at the Bowl — Game Master, Creator, Executive Producer, Writer
• 2025Dimension 20 Live: Gauntlet at the Garden — Game Master, Executive Producer, Writer, Creator
• 2025Dimension 20 Live: Quangle Quest — Game Master, Creator, Executive Producer, Writer
• 2025The Roll of a Lifetime: How Dimension 20 Sold Out Madison Square Garden — Self - Creator of Dimension 20 / Game Master / Dungeon Master, Executive Producer
• Wildemount Wildlings — Padmund Pondhop
• 2024Bigger! With Brennan and Izzy — Self, Writer
• 2024Chris Grace: As Scarlett Johansson — Brennan Lee Mulligan
• Critical Role Abridged — Self, Game Master
• Dimension 20 Live
• Dimension 20: Time Quangle — Game Master, Executive Producer, Creator
• ted — Chris
• Candela Obscura — Sean Finnerty
• Foul Play — Writer
• Very Important People — Augbert, Greg Excitement, Archimedes
• 2022Exandria Unlimited: Calamity — Game Master, Director, Writer
• Battle for Beyond — Nikhil
• Dimension 20 Animated — Lucretia "Lucy" Brockhollow (voice), Bazathrax (voice), Arthur Aguefort / Mr. Gibbons (voice), Sir Keradin Deeproot / Commander Constano Grissini (voice), Announcer / Old Pirate / Garthy O'Brien / Trixie (voice), Evan Kelmp (voice), Plug Strutt (voice), Sir Morris Brie (voice), Vercadian Protector Droid (voice), Bird (voice), Donal / Augbert (voice), Baron from the Baronies (voice), Big Gun Barry Nyne (voice)
• 2021Dimension 20: Misfits and Magic Holiday Special — Evan Kelmp, Creator, Executive Producer
• Exandria Unlimited — Game Master
• Dimension 20's Adventuring Party — Self, Creator
• Downbeat — Tourist
• Fantasy High: Extra Credit — Self - Host, Creator
• Game Changer — Self - Contestant, Self (archive footage), Self - Guest, Self - Katie's Players, Self - Host / Minotaur, Co-Executive Producer
• Gods of Food — Writer
• Kingpin Katie — Brennan Lee Mulligan
• 2019Restroom
• Troopers: Rise of the Budget — IT-1, Gooby (voice), Writer
• Ultramechatron Team Go! — Galatax
• WTF 101 — Gregor MacGregor (voice)
• A Message From the CEO — David Taylor / Tide CEO, Brian Hat / ABC CEO, Rob Shelf / Venmo CEO, Jonathan Floor / MoviePass CEO, Harry Pancake / Tumblr CEO, Matt Stool / JUUL CEO, Dan Spoon / GoFundMe CEO, Landon Bablandananavan / Skype CEO, Carl Box / Oreo CEO, Mark Hardstart / Midland Park Hardware Owner, Writer, Creator
• Adventuring Academy — Self - Host, Creator
• Breaking News: No Laugh Newsroom — Buck Fruckster, Peaches Bitch, D🍩m Th🍩mps🍩n, Rick K. Brick, Carl Candy, Dr. Tristin Chambers, Howard, Deuce Bigalow Irish Seamstress, Temple Grandin Jr., Daisy Dukes, Paul Porridge, Teresa MyPizza, Romeo Romeo, Pat Bieberson, Adele Dazeem, Unknown 12 Year Old Boy, Peaky Blinders, Homer Barris, Flail Sporadically, Sam Rish, Handsome Anthony, 50, Sexy Hustler, Ashton Yellowbut, Macro Pubio, Ryan Beans, Thomas Tickle, "Stone Cold" Steve Penis
• Cartoon Hell — Wrong Kong (voice), Skully (voice), Mr. Peterson (voice), Waiter / Starch Angel Gabriel (voice), Trundle (voice), King Mannybabies (voice), Cutter (voice), Warrior / Boy (voice), Scientist (voice), Hell-O Daddy (voice)
• Dimension 20 — Bishop Raphaniel, Evan Kelmp, Tula, Capt. K.P. Hob, Game Master, Hat, Executive Producer, Creator
• Liverspots and Astronots — Lancery
• Ultramechatron Team Go!: The Web Series — Manila Gorilla, Crab, Jorthog, Galatax
• Um, Actually... — Self - Contestant, Writer
• 2017Crown Prince — Bartender
• 2017Fallen For You — Todd, Writer, Creator
• 2016Bev — Bev
• 2016Nancy
• Critical Role — Game Master, Self
• 2010Zenith — Transportation Captain
• Exandria Unlimited — GM

Appearances as themselves (26)

• 2026Dropout Presents an Improvised Reunion for a Movie that Doesn’t Exist — Self
• Jeopardy! YouTube Edition — Self
• Tale Gate — Self
• 2025Critical Role Live: Oaths & Ash — Self
• Crowd Control — Self
• 2025Katie and Erika Throw The Perfect (Valentine’s Day) Party — Self
• Parlor Room — Self
• Critical Role Cooldown — Self
• Fireside Chat — Self
• Game Changer Animated — Self (voice)
• Gastronauts — Self - Judge
• In Tandem with Chloe Radcliffe — Self
• Monét's Slumber Party — Self - Party Guest
• Thousandaires — Self - Guest (voice)
• 2023The Legendary Rick Perry and the Art of Dimension 20 — Self
• The Ultimate Improv Show — Self
• 4-Sided Dive — Self
• Dirty Laundry — Self - Guest
• Make Some Noise — Self - Player, Self - Gift Prompt (video footage)
• Last Meals — Self
• 2021The Candlenights 2021 Special — Self
• Puppet History — Self
• The Rank Room — Self
• Total Forgiveness — Self
• The Rank Room: The Web Series — Self
• Um, Actually: The Web Series — Self - Contestant