A Dying Star\n\n Eventually, the fuel of the sun - hydrogen - will run out. When this happens, the sun will begin to die. But don't worry, this should not happen for about 5 billion years.
Debuting in the third season premiere "The Magnificent Seven", Ruby (Katie Cassidy) trails Sam Winchester a hunter of supernatural creatures and eventually rescues him from a group of demons, whom she kills with her unique demon-killing knife.
Dean. Many Supernatural fans seem to agree that Dean Winchester is the best character in the show. Dean is a famous figure in pop culture and many of his quotes will live long.