Clayton Allen is a linebacker for the Indiana Hoosiers standing 6'2" and weighing 209 pounds. A native of Fishers, Indiana, he played at Hamilton Southeastern High School under head coach Michael Kelly, where he recorded 103 career tackles and one interception. As a senior, Allen logged 76 stops with 4.5 tackles for loss and 2.0 sacks while also pulling in one interception and two pass breakups. He helped lead HSHS to its first regional title since 2005. Allen joined Indiana as a walk-on during the 2023 season and redshirted his freshman year. He earned Academic All-Big Ten honors in both 2024 and 2025 while redshirted as a junior.