Big Bad

Big Bad is a term usually used for Buffy but that began to be used by some fans to supernatural

The genre is divided into the main villains and the secoundary villains, the main villain are not always a person or a creature, some times it's only a natural happening or something that is going to happen.

Season 1
Main Villain: Azazel

Secoundary Villain: Meg Masters

Season 2
Main Villain: Azazel

Secoundary Villain: Jake Talley

Season 3
Main Villain: Lilith

Secoundary Villain: Crossroads Demon

Season 4
Main Villain: The 66 Seals

Secoundary Villain: Alastair, Lilith and Ruby

Season 5
Main Villain: Lucifer

Secoundary Villain: Zachariah and the Angels

Season 6
Main Villain: Raphael

Secoundary Villain: The Angels