The season 6 renewal for Supernatural is great news for fans who want more Sam and Dean action, but perhaps the biggest open question is: what about Cas? The show's resident angel has a contract through the end of season 5, but currently his future with Supernatural is in doubt.
Fans may love the trench coat-sporting angel played by Misha Collins, but if the Apocalypse storyline is wrapped up, would the angel still be a part of season 6? Right now, I see three distinct possibilities for how Supernatural can handle the impending Cas problem.
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