you are aware that this is an Action adventure rpg so finding voice actors for every character is near impossible right? games like GTA cant be compared to this being that there are only a few characters that need there own voice there for they don't need to hire a lot of people. Bethesda making Skyrim they hired more voice actors then any Grand theft auto game ever needed
Having one for every actor would be impossible, but having more than what they currently have would be so simple you just have to wonder why they haven't taken that route. And the truth is that GTA has a much larger VA cast than Skyrim. Compare if you will:
http://www.imdb.com/title/tt0802999/fullcredits#cast
http://www.imdb.com/title/tt1814884/fullcredits#cast
EVERY person in GTAIV, from pedestrians to voices on the radio, etc, has their own unique voice. I'm certain if Bethesda put a call out for volunteers, hundreds of people would lend their voices to the game. Even if they just got one or two pieces of dialogue to say I'm certain they'd still be riveted. Perhaps Bethesda could then focus on giving more of the main characters their own unique voice, so every second person isn't Jim Cummings.