No. A thousand times no. Keep Russel Brand far, far away from Doctor Who. I'll take another Peter Kay episode before Russel Brand.
I know he's seen as this irrationally polarizing figure in the UK, and I used to trust that opinion because I didn't know better and he seemed to be a showoff and have an irritating voice but now that I've seen a couple of interviews of the guy and read what he wrote about the death of Thatcher, I've realized that he's a very bright, articulate and entertaining fellow. Still no big fan of his standup comedy, but that's not what this is about.
Now Peter Kay, I don't get at all.