Castiel is a main character from Supernatural.
Castiel, an angel of the Lord, was responsible for pulling Dean Winchester out of Hell, on God's command. It was his job to help prevent Lilith from breaking the 66 Seals that, once broken, would release Lucifer from his cage. Once Castiel learned that the Angels wished to free Lucifer, he defied his angelic brethren and died trying to help Dean prevent Sam Winchester from breaking the last seal.
- Crowstiel - the ship between Crowley and Castiel
- Destiel - the ship between Castiel and Dean Winchester
- Sastiel - the ship between Sam Winchester and Castiel
- Main article: Megstiel
- Main article: Destiel