While playing in the NFL, a former teammate who was working as an agent called Loneker and told him he had a part for which he thought he'd be perfect. Loneker had never acted before, but made a tape for the audition and the producers hired him from his tape alone. He was surprised when he landed the role of "White Boy Bob" in Out of Sight. Loneker went on to roles in Rock Star, Superbad, Leatherheads, and Lakeview Terrace. When Loneker wasn’t auditioning for movie roles, he was a substitute Teacher at Lawrence High School in Lawrence, Kansas.