To answer questions
1> Broken Saints is made by a small team, and all their art is original, done by artist Andrew West. The writer is Brooke Burgess, and the animator/technical director is Ian Kirby. Music is also original, provided by Quentin Grey and tobias tinker.
2> For voice acting, check out the DVD edition on the broken saints website. It features full voice overs by voice acting professionals such as Kirby Morrow, David Kaye, and Emmy winner Janyce Jaud. Other bonuses of the DVD include commentaries, special features, hidden goodies, and completely redone art and sound! It's almost like watching a whole new series. The set is 4 disks.