|A haunting need for images|
Alan Dinsdale was the owner of the Hambridge University Library and secretly an undercover special agent for the FBI.
Scooby-Doo! Mystery Mayhem
Alan called Mystery Inc. to come and solve a mystery of hauntings at his library. He believed that an ancient book called the Tome of Doom had summoned the ghosts in his library. The gang eventually defeated the ghosts and found one fake one, Dinsdale's own co-worker Walter Peabody, and was very disappointed. He also suggested that the gang investigate the missing pages in the Tome of Doom.
Later on, he went to Sherman-Tech and disguised himself as a scientist, along with a few other agents, also disguised. Much to his regret, he had to stand there and watch Fred Jones, Daphne Blake and Velma Dinkley get mind controlled and also Scooby-Doo and Shaggy Rogers disable the mind control device. However, after the machine was destroyed, now having solid evidence of Travis Sherman and Selena Drake's plan, he revealed himself, and explained himself to Mystery Inc. Selena Drake ran from the authorites, and they all chased her outside. She then released the Fire King, and Alan watched Shaggy and Scooby defeat him. Afterwards, he thanked Shaggy and Scooby for their bravery.