Slenderman Headcanons (Cont.)

Basic Info.
It/None/He. Genderless Unlabeled Entity. Ageless. Oldest Brother. 8'2"-10'8". Shapeshifter.
More Info.
Slenderman does not care much for gender and has always considered itself above the concept, though after being discovered by humans it has been labeled masc-presenting. It does not care, and only uses it to it's advantage.
It's real name is not Slenderman, and only adapted the name from the media after being discovered. The Brothers adapted similar names as well. He can shapeshift into anything, including a human, though it prefers not to, because it likes stalking it's prey, not face-to-face manipulation.
There is not a clear reason why it hates humans so badly. It does not seem to feed on humans (though will feed prey to it's cannibal proxies), though it seems to enjoy torturing and killing them. Full misanthropist.
It sees its proxies as mere objects, things to play out its bidding, and will not show mercy if they disobey. Despite this, he shelters them, feeds them, and keeps them from outside harm.
It also houses other entities that don't do its bidding. Slenderman does not 'like' things, but seems to hold a bit of respect for other nonhumans. Bonus points if they also hate humans or feed on them.
Relationships
The Brothers
Slenderman holds a fondness (in his own way) for his Brothers. Although not related, he spent most of his "younger" years spending time with them, and sees them as its younger siblings.
Proxies
It does not spend much time thinking about its proxies. To him, they are fragile mortals dumb enough to do its bidding. It does not care about their wellbeing, only if they are dead or alive. He makes them fend for themselves and only provides them with shelter and protection.
Sally
Sally is a special case. Slenderman does not feel, but Sally is the only child in the mansion, and he hopes to protect her. It sympathizes with her and would go to horrid lengths to protect his daughter.
Associations
Faceclaims