It can take the form of anyone who has died, (or as an enormous, phantasmic demon with large horns and long, talon-shaped fingers), and it can choose to be seen and heard by just one person or by multiple people.
The First Evil, a fictional character from the TV series Buffy the Vampire Slayer.
Brotherhood of Evil | Forever Evil | Resident Evil | The Evil Dead | Evil Angel | Pop Evil | evil | Touching Evil | Evil Dead | Planet of Evil | Evil on Your Mind | 976-EVIL | The Mind of Evil | Star Wars: Darth Bane: Dynasty of Evil | See No Evil, Hear No Evil | Midnight in the Garden of Good and Evil | Evil Superstars | Dream Evil | City of Evil | Beyond Good and Evil | Alliance of Evil | Twins of Evil | The Principle of Evil Made Flesh | ''Resident Evil'' franchise | Resident Evil: Extinction | Resident Evil 4 | House of Evil | Hitler: The Rise of Evil | Evil in the Night | Evil Ernie |