- Torgo (First appearance) (Main story and flashback)
- Tana Nile (Cameo)
- Impossible Man (Cameo)
- Star-Lord (Peter Quill) (Cameo)
- Watchers (Cameo)
- Uatu (Cameo)
Races and Species
- Aven-Jet Prime
- Mojo Ensign Class Warp-Ship
- Arena 6C
Mojo sends his minions to abduct Hulk where they also abduct Hawkeye in the process. Mojo puts Hulk and Hawkeye into his tournament show "Mojo-Pocalypse" where they are pitted up against the other galactic fighters (including the top fighter Torgo) that are Mojo's prisoners. After Hulk and Hawkeye forfeit one of the fights, Mojo teleports them back to Earth and then plans to destroy it. With help from the other Avengers, Hulk and Hawkeye managed to defeat Mojo who ends up teleporting away from his ship. Torgo tells the Avengers that he will take the prisoners back to their worlds and have a bounty placed on Mojo's head.
- Mojo's holographic disguise looks similar to the appearance of his counterpart of the Ultimate Universe.
- The arm protector weared by Hulk in arena is similar to same weared by his Earth-616 counterpart during Planet Hulk storyline.