This is a little bit old now, but since Bullet Witch just came out Wednesday (2/28) I think it may still be interesting. IGN has a blog series dedicated to the Xbox 360 game with the staff from Atari contributing different entries about its conversion for the US market. A December entry covers the dubbing of the game with Sarah Natochenny (the new Ash Ketchem) as BW star Alicia, Jamie McGonnigal as her father Jonathan, Sean Schemmel as Maxwell, and Rodger Parsons as Darkness.  You can also find a trailer for the game featuring the English dub here.