Castiel is
Caring toward the Winchesters, well mainly Dean, It's kinda creepy how he appears out of nowhere and as Dean says 'Personal space Cas we've talked about this'
Angel of the lord his father
Super awesome black wings along with an amazing coat
The hottest person in supernatural apart from Sam in season one
Immortally clueless, poor Cas I felt so sorry for him when Dean took him to that bar and he met Chastity, his clueless head tilt and shocked expression are so cute
Emotionless, well mostly
Lean, I swear he could be blown over if it was hard enough