Now this brings up an interesting question, when you say "Bad Guys" is that from the perspective within the anime or our own perspective?
Taking Aiora's entry for example, Kuchiki Byakuya was technically the "good guy" in BLEACH no? (Atleast to the point that I've watched which is just at the end of the Soul Society story arc) Because in that case the "bad guys" would've been Ichigo and his gang whom "invaded" the Soul Society and Byakuya fought them for the sake of the Soul Society. I'd also like to bring up Code Geass as an example. Its rather hard to decide whom is good and whom is bad in this series...(@_@) Than theres Death Note....urgh, my head is beginning to hurt. (._.)
Personally I see Lelouch as a "good guy" of Code Geass but in the anime's perspective he's basically a terrorist so...