Kulbit is a hybrid between an organic and a cybertonian organism, and can veriate between both forms at will. His personality is cold, but there's signs of him just wanting to feel like the others.
Dark Sparkle is a white unicorn, a sister of Twilight Sparkle who first appeared in Zonoya717's Fan-fiction Dark Sparkle Returns in chapter 1. In this chapter she remembered the events from her past.
The selfish desire of humanity causes wars and hatred is born on it, and that it's how my hate for humanity was birth.