Mines are , Caleb Wittebane bc OMG charactres that haunt the narrative are my favorite, and there's so much lore unfolded about him. Then there is the collector and the archivist, a god like child and unknown higher beings that bend the fabric of reality are a must for me !
And last but not least, Belos , no I do not forgive him for his actions no I will not try to justify them, no he's not hot, but I am genuinely passionate about this character psychology and metabolism, it's a quirk of mine, if they are a very complex individual I will automatically like them, I just loooooooove to analyze people and the emperor is one of them. His actions, his train of thoughts are so very bad yet so very interesting, that's why I hate him as a person but love him as a character