Alan Dinsdale

Alan Dinsdale was the owner of the Hambridge Library and secretly and undercover special agent for the FBI.

Scooby-Doo! Mystery Mayhem
Alan Dinsdale called Mystery Inc. to come and solve a mystery of hauntings at his library. He believed that an ancient book called the Tomb 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 dissapointed. He also suggested that the gang investigate the missing pages in the Tomb 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, Daphne and Velma get mind controlled and also Scooby and Shaggy disable the mind control device. However, after the machine was destroyed, now having solid evidence of 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 realesed the Fire King, and Alan watched Shaggy and Scooby defeat him. Afterwards, he thanked Shaggy and Scooby for their bravery.

Appearances

 * Scooby-Doo! Mystery Mayhem