Castiel, often shortened to Cas is a strong, determined, impulsive, competitive, ignorant and naive feral being.
Castiel expresses little to no emotion, which creates flaws and complexities in his persona.
Despite this, he does not display the blank apathy or mocking superiority that seem to characterize his siblings.
His lack of emotion and understanding of human and tokota behavior such as sarcasm
has led to several humorous situations throughout his life, and has occasionally gotten him into trouble with humans and tokotas.
He does, however, become close friends with Ezekiel, who encourages him to be kinder, more caring and more selfless.
He never ignores his little sister because he deeply cares her and he thinks the only reason that he's amazing is because his little sister thinks so.