Frank Welker played Scooby-Doo in the film Lego Dimensions .
Along their journey , they meet and assist the various heroes of the dimensions they visit , such as Dorothy Gale ( Laura Bailey ) , Homer Simpson ( Dan Castellaneta ) , Dr. Emmett Brown ( Christopher Lloyd ) , and Scooby-Doo ( Frank Welker ) while fighting numerous villains , including the Wicked Witch of the West ( Courtenay Taylor ) , Lord Business ( Nolan North ) , Saruman the White ( Roger L. Jackson ) , Daleks ( Nicholas Briggs ) as well as Vortech himself in 1885 Hill Valley and a haunted circus .
Lego Dimensions