Valerie's Voice Actor

I recently finished watching the Danny Phantom series. When it was running on Nickeloden, I only saw a few episodes since I didn't have cable so I had to watch it at someone else's home. A little bit of researching revealed that Danny Phantom lasted only two seasons (what?!), so I figured I should be able to find all the episodes somewhere. Its a pity there are only two seasons. I thought it was rather good, but there were a few things...