Question: What is the actor's middle name that voices the character Dr. William MacDougal?
Sentence (from "Dan Castellaneta"): Noted for his long-running role as Homer Simpson on the animated television series "The Simpsons", he also voices many other characters for the show, including Abraham "Grampa" Simpson, Barney Gumble, Krusty the Clown, Sideshow Mel, Groundskeeper Willie, Mayor Quimby and Hans Moleman.
Relevant evidence: No