Buffy the Vampire Slayer
Glorificus: Glorificus, or Glory, was an evil goddess from a different dimension. She was trapped in the body of a baby boy named Ben. Many years later, she began to take control of the body. After a while she could take full control and change the body into that of her own form for a short time. Glory was trying to find the key that would let her go back to her own dimension. Buffy stopped her. She beat her very badly and Glory was trapped inside Ben again. Knowing that she would become strong enough to come back one day, Giles killed Ben which also killed Glory. Glory was the main villain of season 5.