Hi Karen,
I do mostly Character (video game, animation, etc), Industrials, and Commercials.
There are plenty of opportunities for cross-over. For instance, I just did some Commercial spots using a Swiss accent for Taos Ski Resort. For me, if it has a character/accent/impression, I'll audition for it.
I haven't done promos, radio liners, or audio books yet... each of which can be a specialty of its own...
Cheers,
Joe J Thomas
Joe J. Thomas Acting Portfolio