Groucho, like the other face characters based on real people such as Marilyn and Lucy, is a licensed character. Universal is on some sort of contract with the estates to use their trademarked likeness.
Went to USH today.. the weather was great. It was pretty crowded (a lot of foreign tour groups), but not too bad. Seemed like every character was out (except Klump), plus all the Grinchmas characters. I did see a few new ones, or at least I had never seen them before:
Singing Chimney Sweeps:
And then there was this crew going around doing screen tests with guests. I saw 2 different crews.. each had a director, PA and camera man. They would get people to read a script while they filmed them. They were just walking around various locations.(I normally try to post more interesting photos than this one , but this was all I got of these guys. This is the PA and director)