I have been playing the game for some time, and played DD before that. I played the female warrior following the post "Archery As A Female Warrior", and I liked the character's voice acting better than any of the male leads' voices. Plus, the picture was kinda pleasant to look at. The characters in BD don't speak their lines, so it's kinda moot whether it's male or female (But I imagine it would be irritating for a female gamer to have her character referred to by NPCs as "him" or "errand-boy".)
As to the Death Knight, I think he sounds like Marvin the Martian finally got past puberty. It's less annoying than funny, I just think the player should have as many spoken lines as the DK and NPCs. Otherwise, great game. It took considerable getting used to as it was very different from DD, but I think I would have been bored with a simple expansion of that game. I hope they haven't given up on making a third game in the series.