Best news ever for 
"Supernatural" fans! The CW has confirmed to 
Zap2it that 
Misha Collins, our favorite angel-gone-rogue, has signed on to return to the show as a full-time series regular in the 
already announced Season 9.  In addition, he plans to direct an episode -- making him the second  cast member, after Jensen Ackles, to step behind the camera on the  series.
Currently, Collins' character, Castiel, is embroiled in a  major storyline -- he's just learned that a tablet exists that could  banish all angels from earth forever, and Heaven is willing to do just  about anything to keep the demons (and the Winchesters) from getting  their hands on it. Naomi (Amanda Tapper) has been messing with his mind,  and giving him orders that he only processes on an unconscious level.
We  recently visited Collins on the "Supernatural" set, where we discussed  whether or not Castiel is aware of Heaven's disturbing manipulation of  his life. 
"There's a fine line with Castiel. It's a little bit  difficult to tell what's going on, how much he's conscious of," Collins  says. "Castiel is being programmed by Naomi, and yet, it seems as  though, largely, he's being programmed on an unconscious level. It's  been a balancing act for me, deciphering how much he's aware of what's  going on, and how much he's not. But he does take moments away to go ask  her questions, so he's consciously communicating with her to an  extent."