User blog comment:Tysonjackson/Big Bad discussions/@comment-11331875-20150530070001/@comment-34924658-20150530163417

And another thing: the Big Bad is usually the one behind the plot. For example


 * 1) Ill withhold listing a Season 1-2 example. I mean come on we all know Yellow Eyes was the Big Bad.
 * 2) Dean's going to hell and demons released/Season 3
 * 3) The Breaking of the 66 Seals/Season 4
 * 4) The Apocolypse/Season 5
 * 5) Levisthans/Season 7