Season 2 expanded the rogue's gallery significantly. While Skulker and Ember McLain remained fan favorites, this season gave more screen time to Vlad Plasmius, Danny’s true arch-nemesis. Vlad’s obsession with Danny’s mother, Maddie, and his desire to make Danny his "son" added a layer of psychological drama rarely seen in mid-2000s animation. We also met Technus 2.0 and the frighteningly powerful Fright Knight. Where to Watch Danny Phantom Season 2