<P> Although Castiel is confirmed to be dead , Jack , Lucifer 's son , who regards Castiel as his guardian , is able to make Castiel ' wake up ' in the Empty , the place where angels and demons go when they die , and is eventually returned to life when the entity that controls the Empty finds him annoying now that he is the first being to awake in that place . However , he is subsequently captured along with Lucifer when Lucifer returns to this world to warn them about the Michael of the parallel universe , who seeks to rule this world as well . </P>
<P> Although Castiel is confirmed to be dead , Jack , Lucifer 's son , who regards Castiel as his guardian , is able to make Castiel ' wake up ' in the Empty , the place where angels and demons go when they die , and is eventually returned to life when the entity that controls the Empty finds him annoying now that he is the first being to awake in that place . However , he is subsequently captured along with Lucifer when Lucifer returns to this world to warn them about the Michael of the parallel universe , who seeks to rule this world as well . </P>
who brought castiel back to life in season 5
who brought castiel back to life in season 5
Jack , Lucifer 's son
Jack , Lucifer 's son