I couldn't stand the female Nord voice in Oblivion, just because it was so un-nordic. Since Skyrim is pretty Nordic, I would appreciate if they actually used Norse themed voices. Scandinavian accents are pretty recognizable in English. Maybe Skyrim could do with some Russian accented voices too like Ekaterina Rednikova's.
Morgan Freeman, Sean Connery, and William Shatner.
I second all of those, especially Sean Connery (as a dragon?).
I would also like to hear Emma Thompson, Liam Neeson, Jean Reno (Breton), Nathaniel Parker (Imperial), Andy Serkis, perhaps Ralph Fiennes, Russell Crowe,.. and Vin Diesel: just imagine an orc marauder charging at from a snowy mountain slope shouting "I live for this [censored]!".
Also I would love Charlie Sheen as the Gray Fox, Athony Hopkins in charge of the Dark Brotherhood and the "Governator" as the Fighter's Guild guildmaster.
All very excellent suggestions. Might I add Sophia Myles and Bronagh Gallagher from Tristan & Isolde for two excellent female voices. I love their Irish accents, and they'd fit excellently into a fantasy medieval game such as ES.
Oh, can we have Natascha McElhone then as well please?