Holli Would (voiced by Kim Basinger) is a femme fatale and the main antagonist in Jaden in Cool World. When Jaden Yuki and Jack Deebs enter Cool World, they discover that she wishes to become human. After becoming human, she attempts to enlist Jack to help her find the Spike of Power, but he refuses. When she finds it Cool World and the real world collide, creating all sorts of chaos. Jack eventually becomes a cartoon himself, and Holli is saddled with him.
- Holli will meet Eddy, Double D, Ed and Darkblade in The Eds enter Cool World. At the end, she will reform and join their group.
- She was a former member of the Horde of Darkness.