Abigail Williams is a young legendary witch and the quaternary antagonist in the 2010 Disney fantasy movie The Sorcerer's Apprentice. She was portrayed by Nicole Ehinger. Abigail is one of the Morganians (conjurors named after Morgana le Fay), evil sorcerers skilled in the dark arts the same as Morgana le Fay herself. She too seeks to release Morgana from her imprisonment and begin The Rising, thus bringing about a new world of ruling sorcerers.