Well, obviously Black Goku himself is a main character. He is the center of the story in most cases as his actions drive the plot. Goku also features prominently as he is the one who has to oppose Black Goku. Vegeta is often there too, as he is another strong Saiyan and is eager to take on the threat that Black Goku poses.
Zamasu is another important character in these fanfictions. His connection with Black Goku is crucial as they are partners in their evil plans. In some fanfictions, Trunks also plays a significant role. He might be the one who discovers Black Goku's true nature early on and tries to warn the others. He could also be involved in time - traveling plots related to Black Goku.
Well, of course, Black Lightning himself is the central figure. His daughters, Anissa and Jennifer, are also frequently featured as they play important roles in the original series and have their own storylines and powers. Then there are the villains from the show like Tobias Whale. He's a very interesting character to include in fanfiction as he can create a lot of conflict.
The Guardians like Jack Frost are also commonly featured. Their interactions with Pitch Black are crucial in these fanfictions. They might be trying to stop him or, in some cases, trying to understand him better.
Sasuke could also be a main character. Given his own powerful eyes and his connection to Naruto, he could be involved in a story about the black rinnegan. Maybe he has to team up with Naruto again to deal with a powerful enemy with the black rinnegan.
Obviously, Balerion himself is a main character. His rider, if mentioned in the particular fanfiction, would also be a key character. Often, other dragons might also be important, like Vhagar or Meraxes if the story is set in a world where all the great dragons co - exist.
Future Mai could also be a key character in Goku Black forced fanfiction. Given her relationship with Trunks and her own skills, she could be part of the group that is fighting against Goku Black, or she might even have some unique interactions with him that drive the plot forward.
Zamasu is often paired with Goku Black. Since they are closely related in the original story, fanfiction writers like to explore their relationship further. It could be about their shared goals or how they interact on a more personal level.
One great DBZ Goku Black fanfiction is 'The Blackened Saiyan'. It explores an alternate universe where Goku Black's reign of terror takes some unexpected turns. The story delves deep into his character, showing his motives and how the other Z - fighters react to his presence. It has some really intense battle scenes that are well - written.
Hermione Granger could also be a central figure. Given her thirst for knowledge, she might be the one to first discover the existence of black belt magic in the fanfiction. She would then study it intensively, trying to understand its mechanics and how it can be used for good in the wizarding world.
Then there are the other members of the Black family, either alive or in portraits. They could be sources of information, guidance, or obstacles for the heir. For example, Walburga Black's portrait might be constantly berating the heir or trying to steer them in a more traditional, dark - leaning direction of the family's history.
The heir of the Black family is the key character, of course. But other characters like Hermione Granger could also be involved. She could help the heir with her vast knowledge of magic. And Dumbledore might also show up, as he has a deep understanding of the wizarding world and could offer advice or warnings to the heir.