Brennan Lee Mulligan Biography, Age, Height, Net Worth & More
Brennan Lee Mulligan is a celebrated American comedian, writer, and actor. He’s widely recognised as the creative mastermind behind Dimension 20. His unique blend of improv skills and emotional storytelling captivates audiences.
Known for his work on Dropout and his podcast Worlds Beyond Number, Brennan has become a household name in the tabletop RPG community. His razor-sharp wit and dedication to character development set him apart. Fans across the globe celebrate his contributions to nerd culture and theatre.
Brennan Lee Mulligan Profile Summary
| Attribute | Details |
| Full Name | Brennan Lee Mulligan |
| Date of Birth | January 4, 1988 |
| Age | 37 years old (as of 2025) |
| Birthplace | New York City, USA |
| Current Residence | Los Angeles, California, USA |
| Nationality | American |
| Ethnicity | Irish descent |
| Zodiac Sign | Capricorn |
| Height | 5 feet 9 inches (175 cm) |
| Profession | Comedian, Writer, Actor, Dungeon Master |
| Known For | Dimension 20, Game Changer, Worlds Beyond Number |
| Marital Status | Married |
| Spouse | Isabella “Izzy” Roland (married 2023) |
| Children | One daughter, “Sunny” (born 2023) |
| Net Worth | $1.5–2 million USD |
| Social Media | Instagram: @brennanleemulligan |
| Education | BFA in Screenwriting from School of Visual Arts |
| Training | Upright Citizens Brigade (Improv) |
| Notable Works | Dimension 20, Critical Role: Calamity, Worlds Beyond Number |
| Awards | Webby Award (2019), NY Fringe Festival Excellence Award |
Brennan Lee Mulligan Age
Brennan Lee Mulligan was born on January 4 1988. He celebrates his birthday every year with close friends and family. As of twenty twenty five Brennan is thirty-seven years old. His zodiac sign is Capricorn, which reflects his ambitious nature.
Growing up in New York City shaped his creative personality. Brennan’s early exposure to the arts influenced his career path significantly. He started performing at a very young age and never stopped. His passion for storytelling grew stronger with each passing year.
| Age Details | Information |
| Date of Birth | January 4, 1988 |
| Age in 2025 | 37 years old |
| Birth Year | 1988 |
| Zodiac Sign | Capricorn |
| Generation | Millennial |
| Birthplace | New York City, New York, USA |
| Age When Started D&D | 9 years old |
| Age When Started DMing | 10 years old |
| Age When Married | 35 years old (2023) |
| Age When Became Father | 35 years old (2023) |
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Brennan Lee Mulligan Height
Brennan Lee Mulligan stands at five feet nine inches tall. His height is approximately one hundred seventy-five centimetres overall. Many fans often wonder how tall is Brennan Lee Mulligan. His stature complements his commanding presence on stage and screen.
Despite not being exceptionally tall, Brennan’s personality fills every room. His physical appearance is often enhanced by his signature striped shirt. Fans recognise him instantly by his distinctive style and energy. His beard and expressive gestures add to his memorable appearance.
| Physical Attributes | Details |
| Height in Feet | 5 feet 9 inches |
| Height in Centimeters | 175 cm |
| Height in Meters | 1.75 m |
| Build | Average/Medium |
| Hair Color | Brown |
| Eye Color | Brown |
| Distinctive Features | Beard, expressive facial features |
| Common Outfit | Striped shirts, casual wear |
| Stage Presence | Highly energetic and commanding |
| Shoe Size | Known for American Girl doll shoes joke |
Brennan Lee Mulligan Early Life
Brennan was born into a family deeply rooted in creativity. His mother, Elaine Lee, is an accomplished actress and writer. His father Joe Mulligan built a career as a comedian. This artistic environment nurtured Brennan’s love for performance and storytelling.
He discovered Dungeons and Dragons at just nine years old. By age ten, Brennan was already running games as Dungeon Master. His early passion for fantasy worlds shaped his entire career. The Wayfinder Experience camp became his creative training ground during adolescence.
Brennan was homeschooled, which gave him the flexibility to pursue his passions. He faced bullying during his youth but found solace in games. His education allowed him to focus on philosophy and the humanities. By seventeen, he had earned an associate degree from college.
Brennan Lee Mulligan Education
Brennan’s educational journey began with homeschooling in New York City. This unconventional path allowed him to explore creative interests freely daily. He enrolled at SUNY Ulster to study philosophy and humanities. By two thousand five he completed his associate degree successfully.
He then pursued a Bachelor of Fine Arts in Screenwriting. The School of Visual Arts in New York became his home. He graduated in two thousand nine with comprehensive writing skills. His formal education provided the foundation for his storytelling career.
Brennan also trained extensively at Upright Citizens Brigade for improv. This training sharpened his quick thinking and comedic timing abilities. The combination of academic study and practical performance training proved invaluable. His education in philosophy deeply influences his narrative depth today.
Brennan Lee Mulligan Family Details
Brennan comes from a family of talented artists and performers. His mother, Elaine Lee, excelled as both actress and writer. Joe Mulligan his father, made people laugh as a comedian. This creative household fostered Brennan’s artistic talents from early childhood.
In two thousand twenty three Brennan married Isabella Izzy Roland. The couple met at Upright Citizens Brigade back in twenty seventeen. Their relationship blossomed over shared love of comedy and performance. They got engaged in two thousand twenty-one after years together.
Brennan and Izzy welcomed their daughter Sunny in twenty twenty three. He announced the birth through his Worlds Beyond Number Patreon. Becoming a father added new dimensions to his creative work. His family now lives together in Los Angeles, California.
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Brennan Lee Mulligan Wife
Isabella Roland known as Izzy, is Brennan’s beloved wife today. She is a talented comedian and performer in her own right. The couple first crossed paths at UCB improv theatre in Manhattan. Their shared passion for comedy created an instant connection between them.
Brennan and Izzy dated for several years before getting engaged. He proposed to her in two thousand twenty-one officially. They tied the knot on April 1 2023. Their wedding was celebrated with friends and family in attendance.
Izzy Roland has appeared in various comedy shows and performances. She supports Brennan’s career while pursuing her own creative projects. The couple often collaborates on comedic content and live shows. Their partnership represents a beautiful blend of love and creative synergy.
Brennan Lee Mulligan Career Highlights
Brennan joined CollegeHumor in two thousand seventeen as a writer. His viral sketch Tide CEO brought him widespread recognition immediately. He quickly became a central figure on the Dropout platform. His creativity and energy transformed the company’s content direction significantly.
Dimension 20 launched in two thousand eighteen as his signature creation. The actual play series redefined tabletop RPG entertainment for audiences. Brennan’s storytelling as Dungeon Master captivated millions of devoted fans. The show combines high production values with deeply emotional character arcs.
Beyond Dropout Brennan has worked with Critical Role on campaigns. He served as DM for Exandria Unlimited Calamity and Downfall. In two thousand twenty three he co-founded Worlds Beyond Number. The podcast quickly climbed to the top twenty on Patreon.
Brennan Lee Mulligan Career Timeline
| Year | Career Milestone | Details |
| 2005 | Early Theatre Work | Began performing at The Wayfinder Experience camp |
| 2009 | Graduated SVA | Earned BFA in Screenwriting from the School of Visual Arts |
| 2010s | UCB Performer | Trained and performed improv at Upright Citizens Brigade |
| 2017 | Joined CollegeHumor | Became a writer and performer for an online comedy platform |
| 2017 | Viral Sketch | “Tide CEO” sketch brought widespread internet fame |
| 2018 | Dimension 20 Launch | Created and began DMing flagship TTRPG series |
| 2019 | Webby Award | Won an award for excellence in digital entertainment |
| 2020-2021 | Expanded Shows | Starred in Game Changer, Make Some Noise, VIP |
| 2022 | Critical Role: Calamity | DMed the highly acclaimed Exandria Unlimited miniseries |
| 2023 | Worlds Beyond Number | Co-founded top-ranking actual play podcast |
| 2023 | WGA Strike Activism | Led AMPTiamat D&D-themed protest for writers’ rights |
| 2024 | Critical Role: Downfall | Returned as DM for another acclaimed CR campaign |
| 2024 | International Tour | Took Dimension 20 live shows to the UK and Ireland |
| 2025 | Critical Role: Divergence | DMed the latest Exandria Unlimited campaign |
| 2025 | Continued Success | Ongoing work on Dimension 20, Worlds Beyond Number, live tours |
Brennan Lee Mulligan Net Worth and Income
Brennan Lee Mulligan’s estimated net worth ranges between one point five. He has built wealth through multiple creative revenue streams carefully. His primary income comes from his work with Dropout Productions. As of two thousand twenty five his financial success continues growing.
The Worlds Beyond Number podcast generates substantial income through Patreon. Live shows and tours across the United States add revenue. He also earns from Cameo appearances and special guest performances. His diverse income sources reflect his multifaceted career in entertainment.
| Financial Details | Information |
| Estimated Net Worth | $1.5–2 million USD |
| Primary Income Source | Dropout salary and productions |
| Secondary Income | Worlds Beyond Number Patreon |
| Other Income Streams | Live tours, Cameo, guest appearances |
| Patreon Ranking | Top 20 on platform (Worlds Beyond Number) |
| Live Show Venues | Hammersmith Apollo (2024), major theatres |
| Career Start | Early 2010s (UCB performances) |
| Major Breakthrough | 2017-2018 (CollegeHumor/Dimension 20) |
| Financial Growth | Steady increase from 2018-2025 |
| Investment Areas | Creative projects, family, and content production |
Brennan Lee Mulligan Podcast
Worlds Beyond Number launched in two thousand twenty-three successfully. Brennan co-created this podcast with Erika Ishii and Lou Wilson. Aabria Iyengar joined as the fourth member of this team. The podcast quickly became one of the most popular shows.
The show features original tabletop RPG storytelling with incredible depth. Each episode combines adventure comedy and genuine emotional moments beautifully. Fans support the podcast through Patreon subscriptions in large numbers. It reached the top twenty on Patreon within its first year.
Brennan serves as game master bringing worlds to life vividly. His chemistry with co-hosts creates magic in every single episode. The Brennan Lee Mulligan DND podcast showcases his storytelling mastery. Listeners praise the production quality and narrative complexity of shows.
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Brennan Lee Mulligan Leaving Dropout
Rumours about Brennan Lee Mulligan leaving Dropout have circulated online. Many fans asked if Brennan Lee Mulligan was leaving Dropout recently. In two thousand twenty five a Game Changer episode fueled speculation. The episode titled Fools Gold featured a comedic fake departure.
Brennan pretended to quit Dropout during the April Fools episode. This was purely a joke for entertainment purposes and laughs. He has not actually left Dropout or Dimension 20 shows. The bit confused some fans who wondered did Brennan had left.
Is Brennan Lee Mulligan actually leaving Dropout is a common question. The answer is no, he remains committed to his work. He continues creating content for Dimension 20 and Game Changer. Fans can rest assured that Brennan is not leaving anytime soon.
Brennan Lee Mulligan Recent Updates
Brennan continues to expand his creative empire across multiple platforms. His work on Dimension 20 remains as popular as ever. He recently completed Critical Role Campaign 4 as Dungeon Master. His schedule includes live tours and new podcast episodes regularly.
Recent Highlights:
- 2023: Married Isabella Roland and welcomed daughter Sunny into the family
- 2023: Co-founded the Worlds Beyond Number podcast which became an instant success
- 2023: Led AMPTiamat protest during WGA strike for writers’ rights
- 2024: DMed Critical Role Downfall, earning widespread critical acclaim
- 2024: Completed a successful UK and Ireland tour with Dimension 20
- 2024: Continued starring in Game Changer and Make Some Noise
- 2025: DMed Exandria Unlimited Divergence for Critical Role campaign
- 2025: Appeared in Game Changer Fools Gold episode sparking departure rumours
- 2025: Planning new live shows and continuing Worlds Beyond Number
- 2025: Remains active on social media, connecting with global fanbase
Frequently Asked Questions
What is Brennan Lee Mulligan famous for?
Brennan Lee Mulligan is famous for creating and hosting the hit Dungeons & Dragons show Dimension 20 on Dropout.
How old is Brennan Lee Mulligan in 2025?
Brennan Lee Mulligan is 37 years old as of 2025.
Who is Brennan Lee Mulligan married to?
He is married to Isabella “Izzy” Roland, an actress and comedian.
What is Brennan Lee Mulligan’s net worth?
His estimated net worth is between $1.5 to $2 million in 2025.
Where is Brennan Lee Mulligan from?
He was born in New York City, USA, and currently lives in Los Angeles, California.
What shows has Brennan Lee Mulligan worked on?
He has worked on Dimension 20, Game Changer, Make Some Noise, and Worlds Beyond Number.
When did Brennan Lee Mulligan start his career?
He began his professional comedy and writing career at CollegeHumor in 2017.
Last Words
Brennan Lee Mulligan is a talented comedian, writer, and Dungeon Master who has made a big mark in the world of storytelling. From his early days at CollegeHumor to creating Dimension 20, he has inspired millions with his creativity and humour. His mix of fantasy, acting, and real emotion makes him one of the most loved figures in modern entertainment.
Beyond his fame, Brennan’s journey shows hard work, imagination, and passion for storytelling. He continues to grow with new projects like Worlds Beyond Number and live shows. Fans admire his dedication, wit, and heart qualities that make Brennan Lee Mulligan truly unforgettable.
