For the second season of the Marvel Action Hour, a new introduction was produced called the Marvel Action Universe depicting animation reflecting animated series at the time and included Eternity, Silver Surfer, Avengers, Daredevil, Black Widow, X-Men, Ghost Rider, Galactus, Fantastic Four, Thor, Dr. Strange, Captain Marvel, Hercules, Sub-Mariner, Adam Warlock, Inhumans, Hulk, She-Hulk, Mandarin, Leader, Loki, Howard the Duck, Super Skrull, Dr. Doom, Red Skull, Force Works, and Spider-Man.