Katie Yu/The CW. For 12 seasons, Misha Collins played Castiel, the angel by Sam (Jared Padalecki) and Dean Winchester's (Jensen Ackles) side.But in the antepenultimate episode of Supernatural ...

So it’s not surprising that even with Castiel finally gaining an angel flock, those followers ended up leaving by the end of Supernatural Season 9 Episode 22.

For 12 seasons, Misha Collins played Castiel, the angel by Sam and Dean Winchester's side. Castiel's entrance remains one of the series' greatest moments, not only because it was the introduction ...

In the show, Heaven charges the angel Castiel with watching over Ackles’ Dean Winchester, and he’s constantly stepping in to protect Dean from danger. Further, Castiel is introduced in Season ...