From any anime or show. Japanese, English, or otherwise. Explain why.
Lisa Ortiz- yes, she was overused on Pokemon, but I don't think I'm legally allowed to not like someone who was the voice of my top three favorite female characters (Lina Inverse, Deedlit, and Domino, in no particular order.) She pulls off "cute yet dangerous little girl" nicely. And that's what she shoulda stuck to.
Eric Stuart- Not just for James. Gourry is win, and he was just perfect in that role. After a while, you FORGET it's the same as the Brock voice and love the Gourryness. Well, that, James, and Sebastian.
Stephanie Sheh: I'll be honest. I've only watched Bleach with subtitles thus far (Ichigo's English voice grates on my nerves), so I've not heard her Orihime voice, and I've only heard her speak in small roles in FLCL and in Japanese on the commentary for it. But I got to meet her at GenCon, and she was so sweet and signed my trading card so sweetly (first VA autograph!) and just talked to all of us waiting in line and I love her. She's also very adorable.
Ted Lewis: Giovanni was win. Tracey was win. Robert was win. Etoh (Lodoss War) is win. Director in that Slayers episode is win. Ted am win.
Crispin Freeman: One of the best VAs in the world. Seriously. He's been in nearly EVERY anime (except, oddly enough, Pokemon, though he would have made a wonderful Bashou, but we don't talk about that.) He's also in a lot of video games. You'll know him when you hear him. If you've never heard his work, I'd recommend you watch Slayers (second half of the first season or the other two seasons). Hell, watch Slayers anyway.