
Curt Connors (voiced by Joseph Campanella) first appeared in the episode "Night of the Lizard". Here, the Lizard was portrayed as possessing a genius level of intelligence but also having the savage mindset from the comics. His initial plot in his first appearance was to make the Neogenic Recombinator turn everyone around the world into humanoid lizards like him, but Spider-Man stopped him and reused the Recombinator to turn the Lizard back to Dr. Connors. The Lizard later went on to appear in the episodes "Tablet of Time", "Ravages of Time", "The Final Nightmare", "The Lizard King" and the "Secret Wars" 3-part episode from the end of this series' run in 1997. The non-mutated Curt Connors had many other appearances as a supporting character. In the Lizard's four appearances between "Night of the Lizard" and the "Secret Wars" 3-parter portray him as villainous and much more of a brute, even lacking signs of his intelligence that was displayed back in the pilot episode. But it is the Lizard's alter-ego's, Dr. Connors, appearances as a mild-mannered and well-respected, innocent scientist who plays an important role in some of Spider-Man's adventures, notably in Season 2 with the superhero's Neogenic disease, that makes the Lizard an ally, including his appearance in the 3-part "Secret Wars" episode. Dr. Connors/Lizard is a Dr Jekyll and Mr Hyde-type villain, one half a well-respected scientist, the other half a monster.