Raven. Ravens are often associated with death and darkness in many cultures. Using it as a name can bring an air of mystery and evil to a story. For example, a character named Raven could be a brooding villain who lurks in the shadows.
How about 'The Nightmare Collective'? It gives the feeling that they are the source of nightmares. Or 'The Death's Grasp Society', which sounds really spooky. Another name could be 'The Macabre Mafia'.
Well, there's Mordred. In Arthurian legends, Mordred was a very devious character. Also, Cain is a name that brings to mind the first murderer in the Bible, so it can be considered an evil name for a story. And Vlad, as in Vlad the Impaler, who was known for his extreme cruelty.
Resident Evil was a very famous sci-fi horror game series. Four games had been released so far.
The first was Resident Evil, released in 2002 by the game development company Bioware.
The second was Resident Evil II, which was released in 2004 by the game development company Bioware.
The third was Resident Evil III, released in 2007 by the game development company Bioware.
The fourth was Resident Evil, which was released in 2010 by the game development company Bioware.
These four games were praised by players and critics and became classics in the history of games.
Bellatrix. This name has been made famous by the 'Harry Potter' series as the name of a very evil witch. It has a certain elegance combined with a sense of danger and evil, which can be very appealing for a story's antagonist.
For good names, 'Elysium' is not very common but it refers to a place of great beauty and peace in Greek mythology, so it could be a great name for a good entity in a story. 'Avalon' is also an uncommon one, often associated with a magical and idyllic place. For evil names, 'Abaddon' is an unusual but very effective name. It is often associated with the underworld or a place of destruction in religious texts. 'Mordred' is another less - common name that has evil connotations from Arthurian legend.