Born in Bogotá, Colombia then adopted, Matthew B. Cullen (he/they, él/elle) is a theatre director and creative producer now living in Spanish Harlem. They are a Lin-Manuel Miranda Family Artistic and General Management Fellow, and a lover of blueberries.

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Their goal is to cultivate a community of administrators, artists, and audiences alike around a process focused practice. To do so, they are building a set of artistic, business, and management skills to one day be a co-artistic director of a theatre company devoted to new work while continuing a career as a director.

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Their process is rooted in care, technique, curiosity, courage, and generosity. They lead with kindness, deep listening, and by investing in a process focused practice. To learn more about their process and principles, check out The Groundwork.​

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As a director, Matthew's foundation was shaped by a year of studying with U.K. directors Robert Icke and Lyndsey Turner. Matthew has directed new work in various indie spaces and festivals while developing new work with his producing company, mbc theatrical r&d. In his downtime, he is generating devised work using Moment Work. He is an alum of the Kennedy Center Directing Intensive, Wingspace Directing Mentorship, and Irish Classical Theatre's Directing Apprenticeship. Matthew is an Associate Member of SDC.

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As an assistant director, Matthew has worked on Off Broadway with NOTHING CAN TAKE YOU FROM THE HAND OF GOD (Playwrights Horizons), THIS MUCH I KNOW (59e59/Theater J), THE WIND AND THE RAIN (En Garde Arts and the Vineyard), LA LLAMADA (Repertorio Español), and regionally with AZAD: THE RABBIT AND THE WOLF (Golden Thread Productions). To learn more about Matthew as an Assistant Director, check out On Assisting. 

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Matthew is the founder and creative producer of mbc theatrical r&d; a company to house his research and development pursuits. They are currently developing Alexis Elisa Macedo’s UNTITLED SUPERHERO PLAY and her CHICANA LEGEND as well as Katsuto Sakogashira's WHAT OPPENHEIMER (2023) DID NOT SHOW YOU. In 2025, they produced a seven-week Summer Training Ensemble in Moment Work and created Kill Your Darlings, a weeklong development residency in New York for Alexis' superhero play.

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Outside his independent producing, Matthew has produced and collaborated with organizations from Broadway to the indie scene. They are a member of Musical Theatre Factory’s Creative Producers Cohort (developing Orion Johnstone’s RISK HALLELUJAH), and interned with Orin Wolf Productions as they brought BUENA VISTA SOCIAL CLUB to Broadway. They were a producing assistant on Azul: A Bilingual Musical (54 Below, Joe’s Pub) and a variety of indie projects as a producer, assistant, or consultant.

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Before going freelance, Matthew spent three years in regional and Off-Broadway administrative roles. He completed the Tom O'Connor Consulting Group’s All Rise Initiative mentored by Brenna Thomas and a year-long Lin-Manuel Miranda Family Fellowship at the Vineyard Theatre (General Management Fellow & Company Manager) and Repertorio Español (Artistic Fellow). They also served as Company Manager for two seasons at Chautauqua Theater Company and as an Artistic Associate at the Latiné Musical Theatre Lab.

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While Matthew does not own any pets yet, they have happily had their mustache for three whole years now. Except for that one Thanksgiving. But that's a whole other story.