Found
this, which gives Sylvester McCoy as a cast choice for
The Hobbit.
Laying aside the fact that I'm not a
Doctor Who fan and I don't think I've heard of him before,
theonering.net says he could be up for the part of Radagast. Perhaps he's going to harbour Bilbo and the Dwarves at Rhosgobel so they can leave out Beorn entirely.