Maddie the Cat is the pet-sidekick of Vlad Masters, the human alias of the ghost Vlad Plasmius. Named after Maddie Fenton, the latter to whom Vlad Master is obsessed with to marry, Maddie is a minor antagonist in the television series, Danny Phantom. She appears on her master's side, on several occasions in both the Non-Disney Villains Tournament and the Non-Disney vs. DC Villains War, respectively.
Non-Disney Villains Tournament
Maddie briefly appears, when Dracula, Vlad Plasmius' superior, informs Plasmius about Nightmare Moon's death. She does not make another appearance, thus, the cat's fate remains currently unknown.
Non-Disney Vs DC Villains War
Maddie appears, on her master's side, as Vlad Plasmius demands from Harvey Dent to become mayor of Gotham City, threatening him to reveal some dark secrets, regarding Dent's mental condition.