What you can get is an inexpensive network router. A salesman at Best Buy or other consumer electronics store will be able to find what you need if you describe your problem.
With a router, you can connect multiple devices up to the same internet connection and share it.
You plug it into the back of the box and into a network router or your cable modem directly.
Second part, cool.
Third part, I'll help you get paid.
But you already figured it out.
IMDB.com has voice credits for most video games.