Thomas as Scooby-Doo! Percy as Shaggy Rogers James a Fred Jones Emily as Daphne Blake Mavis as Velma Dinkley Spencer as Scrappy-Doo! (Billy can't be Scrappy: Billy is a hero and Scrappy is a Villain) Rabbit as Rabbit Diesel 10 as Scrappy Rex Retrieved from "http://scratchpad.wikia.com/wiki/Thomas/Scooby_Doo_(film)?oldid=1996182" Ad blocker interference detected! Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.