The main characters would be the JLA heroes. Superman with his super strength and flight, Batman with his intelligence and gadgets, Wonder Woman with her combat skills and magic items. They are the ones who will be driving the story forward, fighting against the villains and solving the problems in the graphic novel.
Obviously, Superman, Batman and Wonder Woman from the JLA side. And from the Avengers, Captain America, Iron Man and Thor are very likely to be main characters. These are the most iconic heroes from their respective teams and are often the face of their franchises.
The main characters are alternate versions of the Justice League members. For example, Superman, Batman, Wonder Woman, etc. Each with their own unique take on their personalities and powers in this alternate Earth setting.
Well, we can expect a lot of exciting superhero action. It might feature different JLA members coming together in unexpected ways. There could be new villains and epic battles that will keep readers on the edge of their seats.
Probably the main character is the babysitter. Alongside, there could be a group of kids with distinct personalities. For example, there could be a curious and talkative child who always gets into trouble, and another one who is very quiet but observant. And there might be some neighbors or friends who pop up during the adventures and play important roles too.
In 'the adventures of polo graphic novel', Polo is the central figure. He's likely to be a brave and curious character. There could be other characters such as the inhabitants of the places he visits. For instance, a group of children in a village he stops at, or a tribe leader in a more primitive area. These characters interact with Polo and either help or hinder his adventures.
I'm not familiar with the specific characters in this graphic novel. But thinking about typical adventure stories, if Zero is the protagonist, there may be characters that represent different aspects of the world Zero is in. There could be a powerful wizard or sorceress who gives Zero clues or tasks. There might also be a group of outcasts that Zero teams up with to fight against a common enemy or to achieve a common goal in the story.
Captain Haddock is also a key character. His drunken yet endearing personality and his loyalty to Tintin add a lot of humor and depth to the stories. For example, in many adventures, his antics and his knowledge of the sea are important elements. And Snowy, Tintin's dog, is always by his side. Snowy is not only a cute pet but also often helps Tintin in different situations, like sniffing out clues or warning him of danger.
Well, Superman from the JLA is an obvious choice. His super strength, flight, and other powers make him a force to be reckoned with. When he goes up against the likes of the Hulk or Thor in the Avengers, it's really exciting. Then there's Loki from the Avengers. He's always causing trouble and his mischievous nature stirs up a lot of the conflict in the story. He plays mind games with both teams and adds an element of unpredictability.
I don't know specifically since I'm not familiar with this particular graphic novel. But generally in a crossover graphic novel, it could be well - known characters from the universes that are being crossed over. For example, if it's a superhero crossover, it might be characters like Superman and Batman.
Batman is surely one of the main characters. He's the central figure in most Batman - related stories. Robin might also be there, as he often teams up with Batman.