Questions About Ubu

I've been watching some JHH clips on YouTube, and I gotta say, Ubu really intrigues me... he's almost like a cross between a traditional Muppet puppet, and a Creature Shop creature: he's very expressive, and I wonder how his facial features are controlled, the movements of his eyebrows and eyelids are so smooth and fluid, they look remote controlled, not to mention his eyebrows don't just simply go up and down like say Bert or other characters, they take shape with different expressions. Again, it looks so smooth and everything, not like the results of a simple mechie or anything.

Also, who performs him? I almost thought it was Marty Robinson at first, but the more I listened, it sounds like Steve Whitmire, but I still don't know for sure.

Ubu is performed by Bob Stutt in "The Ratings Games" episode and performed by Rob Mills" in the "Food" episode.

Hmm, I'm not too familiar with either of them, I'll have to read up about them.