Buffy the Vampire Slayer Big Bads

Hint

Big Bad

Season 1: Ancient vampire who was prophecised to kill the Slayer and bring Hell on Earth

Season 2: Vampire who is obsessed with killing the Slayer and has killed two others, but he is incompetent

Season 2: Female vampire who is insane and can see into the future

Season 2: Vampire who is Buffy's ally in the beginning but becomes evil during the season

Season 3: Mayor of Sunnydale. He becomes a full blooded demon snake during graduation

Season 3: Co-Slayer who replaces Kendra

Season 4: A lab created monster who is part demon, part human, and part robot

Season 5: Immortal Hell god who tries to open a portal to her world with the Key

Season 6: Three "super-villains" who try to take over Sunnydale and fail horribly, until one becomes a rampaging lunatic

Season 6: Ally of Buffy who becomes evil after losing her girlfriend

Season 7: The origin of evil who tries to wipe out the Slayer line but is incorporeal

Season 7: Ally of above and misogynistic preacher