Liam Cassidy is an offensive lineman for Southern Miss standing 6'5" and weighing 320 pounds. The junior from Vancouver, Washington, attended Jesuit High School in Portland, Oregon, before playing at Coffeyville Community College. In 2025, his first season with the Golden Eagles, Cassidy appeared in 12 games and was held out only for the Louisiana Tech contest on September 20. He contributed primarily on special teams during his sophomore campaign.