On Radio: be able to read word-perfectly and have the kind of voice commercials want. Get well known for your acting ability and become a voice-over artist. On TV: Voice-over: as for Radio. You in video: become a celebrity.
if you listen to the radio or even read certain amgazines, there are things called casting calls that let all sorts of people in to audition to possibly become in commercials, movie, and t.v. shows..
Get some experience first. Somewhere in your city or a near by city you will have a theater group. Try out!!! To find one research it on line. Type in "theater groups in ____________ ( your town)....