Obviously, Gideon Emery. To such an extent that whenever I play Skyrim, I get mad pissed that he's just the voice of an Imperial. If I hired Gideon Emery, he'd voice the most dashing, charismatic and glorious creature in the universe, as he did in FFXII.

If we are counting anime, then I'll say a few voices from Naruto. It was my first anime, and when I moved onto my second, Bleach, it was amazing to hear Sasuke in it. And then Tsunade showed up in a filler arc, and I loved it.