Electro refers to a fictional supervillain in the Spider-Man comic book series, whose real name is Maxwell Dillon. He obtained his powers after being struck by lightning, becoming an electricity-manipulating foe of Spider-Man.
Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: Spider-Man adversary played by Jamie Foxx. Explanations are generated by AI and may be inaccurate.