Warren was born to Lewis and Lisa Warren. He began figure skating at three years old before transitioning to ice hockey.[1] His sister, Arielle, was a figure skater at Boston University.[2]
Warren began his collegiate career for Boston College during the 2019–20 season.[5] In his freshman year he recorded six goals and five assists in 34 games and helped the Eagles win the Hockey East regular season championship. On October 11, 2019, he scored first career goal in his NCAA debut in a game against Wisconsin.[6] He ranked second in Hockey East among rookie defensemen in goals, and led all freshmen defensemen in the league with a +22 rating.[2] During the 2020–21 season, in his sophomore year, he recorded three goals and eight assists in 23 games. During the 2021–22 season, in his junior year, he six goals and 15 assists in 37 games. During the first round of the 2022 Hockey East tournament against New Hampshire, he assisted on the game-winning overtime goal by Marc McLaughlin.[7] He was named captain for the 2022–23 season, becoming the first black player to serve as captain in program history.[8] In his senior year he recorded five goals and nine assists in 36 games.[2]
On March 27, 2023, Warren entered the NCAA transfer portal. He finished his career at Boston College with 20 goals and 37 assists in 130 games.[9] On April 14, 2023, he transferred to Michigan for his final year of eligibility.[10] He was named an alternate captain for the 2023–24 season.[11] During his graduate student year, he recorded four goals and 14 assists in 41 games.[12]