I don't know for sure as I haven't read this particular graphic novel. But it could be some kids who are curious about the Halloween tree. Maybe a brave boy and his friends.
The main characters could be a young girl who has a special connection to the Halloween tree, perhaps she can sense its magic. Alongside her, there could be a group of neighborhood kids, including a smart - aleck who always has something to say, and a shy one who overcomes their fears during the adventure around the Halloween tree. There might also be an old hermit - like character who lives near the tree and holds the key to understanding its secrets.
It's likely that there are characters who are intrigued by the mystery of the Halloween tree. There might be a local witch or wizard - like figure who helps or hinders the main characters. It could also have a group of misfit kids, each with their own unique personality, who together embark on an adventure centered around the tree.
In the 'Long Halloween Graphic Novel', apart from Batman, there could be characters like Harvey Dent. He is an important figure in the Batman mythology and his transformation into Two - Face could be a significant part of the story. Catwoman might also be present, as she has a complex relationship with Batman and often gets involved in the events and mysteries of Gotham.
I don't know for sure as I haven't read it. But it could have a young adventurer as a main character who is intrigued by the ghost tree.
I'm not sure specifically as there could be many different 'Halloween Tree Graphic Novels'. It might be about spooky things related to Halloween, like witches, ghosts, and pumpkins. It could also tell a story set around a special tree on Halloween night, perhaps with kids having an adventure in a haunted forest.
Obviously, Michael Myers is one of the main characters. He is the central figure of horror in this graphic novel. There might also be the survivors or potential victims who play important roles as they try to evade or confront Michael.
The main characters include Batman, who is at the center of the story trying to maintain order in Gotham. Then there are the villains such as the Joker, known for his chaos - creating antics. Two - Face, with his split personality and moral dilemma, is also prominent. Catwoman, who has her own motives and often walks the line between good and bad. And of course, Commissioner Gordon, who is Batman's ally in the police force.
In the 'magic tree house the graphic novel', the two central characters are Jack and Annie. Jack is a boy who loves to read and learn. His knowledge comes in handy during their adventures. Annie is his sister, who is brave and eager to explore. They both enter the magic tree house, which transports them to amazing places. Their different personalities create an interesting dynamic as they face the challenges and wonders of the different worlds they visit.
Jack and Annie are the main characters in 'the magic tree house graphic novel'. They are siblings or at least very close friends. They are the ones who enter the magic tree house and embark on all those amazing adventures together.
The main characters are Laurie Strode and Michael Myers.
Batman is obviously one of the most important characters. He's the main protagonist trying to solve the mystery. Then there's the Joker, a chaotic and unpredictable villain. Harvey Dent is also crucial as his transformation into Two - Face is a significant part of the story.
I'm not sure without reading it, but usually there are some key family members like the patriarch or matriarch. They often play important roles in driving the story forward.