Barack Obama, I'd imagine it be funny as hell.
Or better yet, the whole US Government.
Oh now you've done it, I'll dig up the political characters from another thread.
Barack Obama - Human Warrior
Joe Biden - Gnome Warlock
Mitt Romney - Tauren Paladin
Paul Ryan - Goblin Mage
Dick Cheney - Dwarf Hunter
John McCain - Undead Death Knight *insert old man joke here*
Sarah Palin - Draenei Shaman (Far Sight <.<)
John de Lancie
Robert John Downey, Jr
Joseph D. Kucan
Peter Cullen (atleast to voice something)
John Noble (i could so see him playing a goblin mage or warlock with goblin engineering after Fringe)