<P> Castiel / ˌkæstiˈɛl / is a fictional character portrayed by Misha Collins on the CW Television Network 's American television series Supernatural . An Angel of the Lord , he first appears in the fourth season , and is used to introduce the theme of Christian theology to the series . In the series , Castiel brings Dean Winchester back from Hell and frequently helps him and his brother Sam in their battles with various demons and angels along the way . During his travels with the Winchesters , Castiel develops friendships with both men . As an angel , he possesses a number of supernatural abilities , including the ability to kill demons . Initially , the character demonstrates complete devotion to God and little emotion . However , his interactions and experiences with Dean Winchester and Sam Winchester , as well as certain revelations about God and his fellow angels , have a humanizing effect on him . This , despite the stress and harm it causes his character , allows him to develop an independent will as the series progresses and helps the show address topics related to free will . </P>
<P> Castiel / ˌkæstiˈɛl / is a fictional character portrayed by Misha Collins on the CW Television Network 's American television series Supernatural . An Angel of the Lord , he first appears in the fourth season , and is used to introduce the theme of Christian theology to the series . In the series , Castiel brings Dean Winchester back from Hell and frequently helps him and his brother Sam in their battles with various demons and angels along the way . During his travels with the Winchesters , Castiel develops friendships with both men . As an angel , he possesses a number of supernatural abilities , including the ability to kill demons . Initially , the character demonstrates complete devotion to God and little emotion . However , his interactions and experiences with Dean Winchester and Sam Winchester , as well as certain revelations about God and his fellow angels , have a humanizing effect on him . This , despite the stress and harm it causes his character , allows him to develop an independent will as the series progresses and helps the show address topics related to free will . </P>
when does castiel first show up in supernatural
when does castiel first show up in supernatural
fourth season
fourth season