Kagura and Kanna. Tthey would be so cool if they were on the good side. But being on the good side would clash with kagura's personality.
And Kogua. He's kind a a mix between good and bad depanding on how you look at it. For love, bad, for fighting and trust, good.
(And yes, that is how you are supposed to spell his name. Not Koga. The translatours messed it up.)