That Blankety Blank thing is superb. Do we know who wrote it?
Walliams (surprise, surprise) is easily the weakest link in that sketch. The other impressions are great, even the surreal Rushton, but he can't even manage a generic Welsh accent.
Weak spot of the piece for me is Jonny Rotten, not because of Freeman but just that he doesn't do anything. Wonder if his big moment was cut.
A great sketch on almost all accounts but I have to ask, was Willie Rushton really that strongly associated with his grunting noises? I'm too young to have seen him make TV appearances but I'm familiar with his voice acting in The Trap Door and the Ian Emes animated short The Beard - both of which are rife with moans and groans, very much like the ones in the sketch - but no way that was the exclusive remit of his VA work, right?
I suppose the joke was that back then Willie Rushton was renowned for being a well-spoken, intellectual satirist but also for looking a bit crazy with his trademark scraggly long hair and beard. Frost seized on that and made him into this sort of burbling caveman.
I can imagine Pegg, Serafinowicz et al at the early readthroughs going "'s' fine Nick, if you can't do the voice we'll do some daft grunting and you can make that work easy"
Seemingly written by Serafinowicz, with some dialogue by Kevin Cecil and Andy Riley.