Sir Sedgwick

Sedgwick Jones is the first Earl of Hagglethorn, owner of Hagglethorn Hall. His tourist-attraction business was being ruined by the Haunted Horseman and the Moat Monster, and he was about to turn the castle over to his cousin, the Duke of Strathmore, until the gang solved the mystery.

Physical appearance
He is a gray-haired man in a wheelchair.

Appearances

 * The New Scooby-Doo Movies - The Haunted Horseman of Hagglethorn Hall