Barry is Dave's Sound Engineer who appears in the fourth CGI/live-action film, Alvin and the Chipmunks: The Road Chip.
He is first seen recording one of Ashley Grey's songs in Hollywood along with Dave, the Chipmunks and Miles. When Theodore finds an old chip in the coach, he makes a joke about coached chips only being for talents, but then allows him to keep it if he doesn't tell anyone about it. He is later seen again in Miami where he tries to propose to his girlfriend Alice. However, things don't exactly go as planned when he discovers that his ring has been replaced with a breath mint by Alvin, who thought that the ring was meant for Samantha and wanted to stop Dave from proposing to her. Alvin later fixes his mistake and Barry is able to propose to his girlfriend who emotionally accepts his request.