I'm not 100% sure how 100% accurate this website is. but its hasn't lead me astray yet, so I'll take its word. I'm a LOTR nut and dork and I was excited to hear that production for The Hobbit is closing in and the casts, for the most part, have been made. There aren't many American actors in this one, but I'm still excited.
"CAST LIST SO FAR (As of November 1st, 2010)
MARTIN FREEMAN – BILBO BAGGINS CONFIRMED
RICHARD ARMITAGE – THORIN OAKENSHIELD CONFIRMED
AIDAN TURNER – KILI CONFIRMED
ROB KAZINSKY – FILI CONFIRMED
GRAHAM MCTAVISH – DWALIN CONFIRMED
JOHN CALLEN – OIN CONFIRMED
STEPHEN HUNTER – BOMBUR CONFIRMED
MARK HADLOW – DORI CONFIRMED
PETER HAMBLETON – GLOIN CONFIRMED
JAMES NESBITT – BOFUR CONFIRMED
ADAM BROWN – ORI CONFIRMED"
It is rumored that Viggo Mortensen and Ian McKellen will be making an appearance in the film. I hope so. I'll try and keep everything up to date. ^.^ Yahoo.