Kerberon

Kerberon was a demon, considerd god-king into his hell dimension.

When The Soul Glutton and The Mistress opened an portal to his world for to trap The Slayer Buffy Summers and his friends, Kerberon and his army tring to pass.

He was destruct by Dawn Summers, using her recently Key ability, blasting him with her magical energy.

Appearances

 * In Pieces on the Ground, Part Four
 * In Pieces on the Ground, Part Five