Mr. Griffith's twin brother appeared in "The Spirited Spooked Sports Spectacular", an episode of The New Scooby-Doo Movies. He partnered up with Jesse Finster.
The two dressed up as the Spirit of Fireball McPhan to scare people away from the school to buy it cheap and turn it into a gambling operation. They captured the real Mr. Griffith and made him prisoner. After he was captured, his twin brother impersonated him and canceled the All-Sports Benefit Show. They also hired Mr. Teller's company bulldozers to make it look like Mr. Teller was behind their scheme.