Mickey Vaccarello is a 6'2", 230-pound outside linebacker from Pittsburgh, Pennsylvania, who attends Stanford. He was a consensus top-25 recruit in Pennsylvania, ranked as high as No. 12 by recruiting services and No. 4 by national outlets at his position. At Peters Township High School under coach Thomas Plack, Vaccarello was a three-year varsity starter in football and basketball. As a junior, he recorded 13 sacks and 39 quarterback hurries. Over his final two seasons, he compiled over 200 tackles, 21 sacks, two interceptions returned for touchdowns, and 22 tackles for loss. He earned First Team All-Conference honors at linebacker and tight end, plus First Team All-State linebacker recognition. Currently a redshirt freshman, Vaccarello did not appear in a game during the 2025 season.