In the following article from polygon.com, voice actor powerhouses like Jen Taylor (Cortana from our beloved Halo franchise) and Jen Hale of Mass Effect (and now Halo 4) fame talk about the ins and out of being a voice actor for the video game industry, what the pay is like and how they often go about their daily lives not being recognized by the general public.
http://www.polygon.com/features/2013/4/2/4104160/why-arent-video-game-actors-treated-like-stars
Take a gander at that article, it’s a good read, even if it’s not all about Halo.
-Sal