Frank Welker (1980s cartoon series), Larry Stotch (1960s cartoon series) Greg Eagles (Batman of the Future), Kevin Michael Richardson (2000s Batman cartoon).
Yes I do hate myself for looking that up.
I looked at this list and thought "Why do I know the name Frank Welker?" and so went off to do the obligatory wiki search where I discovered that he provided the voice of Freddie for Scooby Doo but I recognised the name because he was Abu in Aladdin. One of the better Disney "Classics".
Fun Fact: Frank Welker is the second highest grossing actor after Samuel L. Jackson. The man has done a voice acting role on nearly every American animated movie/show.