The CW will welcome a special guest star on Supernatural Season 9 Episode 11.

A very relaxed special guest star, we should say.

Timothy Omundson (Psych) will stop by "First Born" as Cain, the owner of the only blade that can kill Abbadon. And when Crowley and Dean go to retrieve it, the latter will get into a rather bloody brawl... but Omundson's Cain won't seem the least bit affected by it.

Check out his chilled-out state in the following episodic photos, and also get a look at Castiel hoping to extract leftover grace inside Sam so they can track Gadreel.

Supernatural Photos from "First Born"

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Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.