Nerissa

Nerissa is the ulmate villain of W.I.T.C.H and a former guardian herself making her a good foil to Will

Legends of Light And Darkness
She is Darkseid's right hand man and conspirator. She and Darkseid orchresated all of the Guardian's deaths apart from Will. Narissa and Darkseid also have some kind of Unholy Matirmory

Narissa oversaw the events acted on by Giovanni and Ozai and she tells Darkseid this. Where Darkseid and Rugal make a plan regarding the Alpha Team

Narissa and Joe attempt to kidnap Will, but Horvath gets her first which dissuades Carroll. However Narissa has a plan, help Bender and his friends get Will so they can trust her and help her acquire peace over the multiuniverse with Darkseid. She and Truth see her in Khan's Confinement and she sends the designs of his ship and a way to save her to them. Nerissa ejects Khan out of space after Darkseid takes over his ship and the remaning men there. Nerissa believes that Darkseid will control The Joker, though she does give Addler a few points regarding the clown.

Allies: Darkseid, The Entity, Prophet of Truth, Irene Addler, The People of Aplkopis, Joe Caroll, Rugal Bernstein, The Joker

Enemies: Will and the Guardians, Prince Phobos, Cedric, AVGN, Bender, Skipper, Heloise, Phineas, Isabella, Axl, Axel, Alie, Jack Frost, Nostalgia Chick, Orion, Jack Bauer, Suede, Will Vandom, Phantom R, Marie W.I.T.C.H, Hiccup, Astrid, Zuko, Katara, Aang, Hellboy, Obi Wan Kenobi, Jack Sparrow, Aleu, Balthazar Blake, Spyro, Sabrina Spellman, Klonoa, Green, Sliver, Slade, Anti Cosmo, Hades, Mojo Jojo, HIM, Mozernath, Lex Luthor, Dr.Doom, Master Albert, Bowser, Celes Chere, Captain Hook, Malefor, The League of Darkness