Aiden Sullivan holds the MLB · Starter spot in Oregon State Beavers’s linebacker room. Where he sits among the room’s front-line roles:

Aiden Sullivan is a 6'1", 226-pound middle linebacker from Twentynine Palms, California, currently in his redshirt senior year at Oregon State. Sullivan played in all 12 games in 2025 with nine starts, recording 72 total tackles, seven tackles for loss, one sack, five quarterback hurries, one pass breakup, and three forced fumbles. His season high came against Houston with 13 tackles. Sullivan transferred to Oregon State after playing two seasons at Butte College, where he posted 82 tackles and 19.5 tackles for loss in 2023 before recording 65 tackles and 17.5 tackles for loss as a freshman.