Ashfur

Ashfur, formely known as Ashpaw, was a supporting heroic character in The Darkest Hour, but one of the two main antagonists of the Power of Three, the other being Sol.  Ashfur killed Bone, the deputy of the BloodClan, as apprentice and was in The Power of Three in love with the deuteragonist in the New Propechy and a major character in the Power of Three, Squirrelflight, and becomes lawful evil and greedy.  He was killed by Hollyleaf, one of the main protagonists in ''the Power of Three. ''Ashfur was a grey tomcat with black stains. Ashfur is the main antagonist of the book 'The Broken Code' of the Power of Tree and a pivotal character in the book 'Eclips'.

Despite being one of Warrior Cats' primary villains, he was never sentenced to the Dark Forest but it's opposite, the StarClan, almost like Mudclaw.