Leviathan later became the guardian of another incarnation of the Secret Empire. Again a henchman of Professor Power, he battled and was defeated by the duo known at the time as Captain America and Bucky (and who later became known as  U.S. Agent and Battlestar, respectively).Captain America #338 Gargantua later became a part-time member of Doctor Octopus' Masters of Evil where they plotted to storm the Avengers Mansion while the Avengers were away. This was made easier when many of the superheroes were replaced with evil doppelgangers of them during the Infinity War. The Masters of Evil were thwarted by the Guardians of the Galaxy who were visiting the Avengers Mansion at the time. Both teams had to work together to stop the doppelgangers. Gargantua was among the members who revolted against Doctor Octopus when he wanted to continue the fight against the Guardians. After Doctor Octopus fled, his Masters of Evil disbanded.Guardians of the Galaxy #28–29 When it came to a small town that was renamed Hulk, Gargantua joined two other superstrong villains, Abomination and Titania, into attacking it to lure out the Hulk. They retreated when they realized that the Hulk was not there.The Incredible Hulk Annual #19
Leviathan later became the guardian of another incarnation of the Secret Empire. Again a henchman of Professor Power, he battled and was defeated by the duo known at the time as Captain America and Bucky (and who later became known as the U.S. Agent and Battlestar, respectively).Captain America #338 Gargantua later became a part-time member of Doctor Octopus' Masters of Evil where they plotted to storm the Avengers Mansion while the Avengers were away. This was made easier when many of the superheroes were replaced with evil doppelgangers of them during the Infinity War. The Masters of Evil were thwarted by the Guardians of the Galaxy who were visiting Avengers Mansion at the time. Both teams had to work together to stop the doppelgangers. Gargantua was among the members who revolted against Doctor Octopus when he wanted to continue the fight against the Guardians. After Doctor Octopus fled, his Masters of Evil disbanded.Guardians of the Galaxy #28–29 When it came to a small town that was renamed Hulk, Gargantua joined two other super-strong villains, the Abomination and Titania, into attacking it to lure out the Hulk. They retreated when they realized that the Hulk was not there.The Incredible Hulk Annual #19
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