Black Cat has got to be in my Top Anime List! It's not only full of action, but it's got comedy, drama and even some romance. I watched the entire series (though it was in japanese) but I'm sure that Jason Liebracht will do a great job as the voice actor of Train Heartnet.
I truely think that any otaku/anime lover should consider checking out Black Cat. The fight scenes are amazing, and the storyline is really interesting!