Brian Adderley is a 6'2", 245-pound outside linebacker for the Temple Owls. The Newark, Delaware native joined Temple as a walk-on in 2025 and redshirted that season while earning special teams practice player of the week honors against East Carolina and a spot on the Athletic Director's Honor Roll. At Tower Hill School, Adderley recorded 13.0 sacks as a senior and earned first team all-conference accolades at both offensive and defensive line. During his junior year, he compiled 115 tackles—a school record for linemen—along with 37.0 tackles for loss, 7.0 sacks, seven forced fumbles, and one pick-six. He is a business management major and currently competes as a redshirt freshman.