29. Theon Greyjoy
From Theon to Reek, there aren’t many characters with a bigger transformation than Theon Greyjoy. After Ned Stark raised him as one of his own, Theon betrayed Robb Stark, seizing Winterfell in the process. Theon’s betrayal comes back to bite him when he is captured by House Bolton. Ramsay Snow mutilates and tortures Theon — going as far as renaming him Reek. Theon eventually found a bit of redemption by helping Sansa Stark escape Winterfell, and now is tasked with saving his sister, Yara.
Image Source: HBO