Ahh I see. I don't know much about voice over work, but to find work for being an extra, you can start by joining a facebook groups/page that will post castings in that particular area.
I found a few for you to start off with
facebook group - https://www.facebook.com/groups/louisianacastingcalls/?ref=br_rs
facebook page - https://www.facebook.com/CaballeroCasting/?ref=br_rs
website - http://www.centralcasting.com/NOLA/actors/index.html
Hope it helps. Best of luck to you!
Thanks Thong!!! I'm going to check into those right now.
Anytime! Let me know if you have any more questions!