When to Watch: Tuesday, Oct. 15 at 9 p.m. on the CW What to Expect: Perk up idjits ‘cause Bobby is set to return! "Didn't see this one coming," Jim Beaver teases of his reappearance. "Whatever you think it is—it ain't." As for now-human Castiel, Jensen Ackles previews, "We don't quite understand the skill set that Cas has as a human yet. Are we going to have to teach him how to handle a gun? Are we going to have to teach him how to drive a car?"