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Matthew Chauncey is an American screenwriter and producer best known for his work within the Marvel universe. Born in New Jersey, he attended Northwestern University, where he earned a Bachelor of Science degree in journalism, economics, and legal studies. Early in his career, he held editorial roles at publications such as New York and Junior Scholastic before transitioning to the entertainment industry.
Chauncey’s entry into television came when he was an assistant on ABC’s Agent Carter (2015-2016). From this position, he rose through the ranks and became a writer for several Marvel projects. He served as a consulting producer on Ms. Marvel (2022) and Eyes of Wakanda (2025), and serves as showrunner for What If...? Season 3 (2024) and X-Men ’97 Season 3. His writing credits also include work on the animated series 3Below and Trollhunters, and he wrote additional literary material for Marvel Studios feature films, Thor: Love and Thunder (2022) and The Fantastic Four (2025).
In 2022, Chauncey expanded into audio content by creating and executive-producing Self Center.