The last season of Buffy the Vampire Slayer premiered on September 24, 2002 and ended on May 20, 2003. Do you remember who the "Big Bad" is in the season?
Answer The First Evil
The First Evil was a unique entity that predated human and demon. It was the personification of the concept of evil itself, manifested from all evil in existence. The First could assume the form of any person who had died, including vampires and those who has been resurrected.
Asked by Vasilii Kulev · Last updated 5 years ago · 462 views · SOURCE