Jim Cummings is a voice actor with an impressive CV, with roles such as Sonic the Hedgehog, MODOK and the Tazmanian Devil to name just a small fraction, I can guarantee that you have watched something has voiced.This guy is also rings sick kids as Pooh to cheer them up on behalf of the Make a Wish foundation, what a guy!
In this particular video, Cummings takes on the lines of Darth Vadar using that well known voice of Winne the Pooh, which is a little disturbing but highly watchable, plus listen out for Darkwing who also makes an appearance.
http://youtu.be/eLXTDirrQ5w