Mark Debiak is a defensive lineman for Eastern Michigan who stands 6'3" and weighs 269 pounds. The Kansas City, Kansas native attended Gardner Edgerton High School, where he was a three-year letterwinner and two-time team captain. As a senior, he recorded 13 sacks and helped lead the Trailblazers to a 12-1 record and state title, establishing program records for single-game, single-season, and career sacks. Debiak played at Butler Community College before enrolling at EMU for the Winter 2026 semester. At Butler CC, he appeared in 19 games with 69 tackles, 12.5 tackles-for-loss, and 9.0 sacks. In 2025, he recorded 42 tackles, 5.5 tackles-for-loss, 5.0 sacks, a forced fumble, and a fumble recovery.