@dlowan,
errrr no, Set sounds a lot like John Goodman IRL. Robin Williams has more of a mid-western sound, where Set, like Mr. Goodman, has that slightly southern thing happening.
Walter's got a marvellously deep voice. Thomas seems to always be on the point of giggling. dlowan always sounds like Olivia Newton-John to me.
Lola's got the most marvellous quality of voice. Just a little Texas edge in there.
~~~
I heard Chai's real voice on that video clip she posted a while back, but in my head, I still read her posts hearing Roseanne Barr's voice.