screenrant.com -BY RHYS MCGINLEY - Supernatural's Dean makes many mistakes that end up causing serious harm, but he also acts as a villain thanks to possession and the Mark of Cain.
screenrant.com -BY SAIM CHEEDA - Dean's pairing with Castiel led the way for their character development and cemented them as relationship goals in the eyes of many Supernatural fans.
screenrant.com -BY RHYS MCGINLEY - Supernatural was filled with so many characters that many of them did not get to interact. Here are some friendships that could have been great.
screenrant.com Von MICHAEL KENNEDY- - Supernatural's large community of hunters seek to end monsters wherever they may be, but sometimes they themselves take a turn for the monstrous.