The english voices were great. There was a few that I was worried though.

I was worried for Aerith VA since she sucked in KH2 having no emotion whatsoever. But she did quite well here.

Cid was another one I was worried about. He had a really heavy southern accent sounding like 50. But he toned it down in the movie.

Steven Blum was a good Vincent. Though I say he would have been better if he sounded more like Spike than Zabuza.

And the weirdest one was by far Cait Sith. A cartoony voice would have been enough. I don't think the irish accent was needed.

The only thing that I will really complain is that they gave my favorite character just one line in the whole movie! What's up with that!