Big Bad

Big Bad is a term usually used for the television series Buffy the Vampire Slayer but began to be used by some critics and fans to Supernatural.

The genre is divided into the main villains and the secondary villains. The Big Bad is the main villain of the season, orchestrating events behind the scenes, while the secondary villain(s) often (but not always) serve the Big Bad, appearing more regularly and antagonising the heroes.

Season 1

 * Main Villain: Azazel
 * Supporting Villain: Meg

Season 2

 * Main Villain: Azazel
 * Supporting Villain: Jake Talley

Season 3

 * Main Villain: Lilith
 * Supporting Villain(s): Gordon Walker and Bela Talbot

Season 4

 * Main Villain: Lillith
 * Supporting Villain(s): Alastair and Ruby

Season 5

 * Main Villain: Lucifer
 * Supporting Villain(s): Zachariah, Michael, and the Horsemen of the Apocalypse

Season 6

 * Main Villain(s): Raphael and Crowley
 * Supporting Villain(s): Eve and Castiel

Season 7

 * Main Villain: Dick Roman
 * Supporting Villain(s): Edgar and Lucifer (hallucination)