Mark Hamill aka Luke Skywalker in the first three Star Wars movie is also the voice behind the Joker in Batman: the Animated Series. In this video he tells us how he develops his own intepretation of the Joker's iconic, maniac laugh.
DISCLAIMER:
I blog on MS Word - and I frequently backlog because I don't have the time to write everything on the same day, so please ignore the TIME of post.