The Lovegood family, especially Luna Lovegood, can be major characters in these fanfictions. Their unique view of magic and their connection to the Potter family through Luna's friendship with Harry makes them integral to the family alliance concept. And Neville Longbottom might also be involved, as he has his own family history and is a strong ally of Harry's. He could contribute his knowledge of herbology and his courage to the alliance.
Obviously, Harry Potter himself is often a central figure. His friends like Ron Weasley and Hermione Granger also play important roles as they are part of his extended family - like group. Ginny Weasley, as Harry's wife in the original series, is also a key character. Then there are the older generation characters such as Molly and Arthur Weasley who bring their wisdom and family values to the alliance.
Obviously, Harry Potter himself is the central character as it's about him in diapers. Dumbledore often features as he plays a crucial role in Harry's life. Hagrid might also be there as he has a special connection with Harry. And of course, the Dursleys could be part of the story, perhaps in their begrudging care of baby Harry.
Well, Harry Potter himself could still be a main character. Since it's about family alliances, his friends' families like the Weasleys would likely be important too. Hermione's family might also be involved, even if they are Muggle - born, as they could contribute in unexpected ways. And who knows, some minor characters from the original series might step up and become main characters in the context of the family alliances.
Obviously, Tonks is the central character. Her husband, Lupin, is also a very important figure. Harry Potter and his friends might also be involved in some way. For example, they could offer support or protection to Tonks during her pregnancy. Hermione, with her vast knowledge of magic, might be helping Tonks with any magical complications related to the pregnancy.
Dumbledore can also be a significant character. He might be the one who decides Harry's punishment or he could be the one to offer some wisdom to Harry during his time of being grounded. And of course, the teachers like Snape or McGonagall could be involved as they are often the ones who enforce the rules and punishments at Hogwarts.
The Weasley twins, Fred and George, are often the main instigators. They have a reputation for their mischievous pranks in the original series, so it's natural that they would be at the forefront of pranking Umbridge in fanfiction. Their creativity and disregard for authority make them perfect for coming up with elaborate and hilarious pranks against her.
The Weasley twins, Fred and George, are often the main instigators of pranks in Hogwarts fanfiction. They have a natural knack for mischief and are always coming up with new and creative ways to cause chaos in the school. Their products from Weasleys' Wizard Wheezes also play a big role in the pranks they pull.
Obviously, Harry Potter is one of the main characters. He often takes center stage in these fanfictions when it comes to the animal - related plots. Hermione Granger is also commonly involved as she is known for her knowledge of magic and animals in the original series. Ron Weasley usually tags along as well. Sometimes, characters like Hagrid, who has a great love for magical animals, also play important roles. These characters interact with the animals in different ways, whether it's to protect them, study them, or go on adventures with them.
In Harry Potter's prank fanfiction, the main characters involved are typically the mischievous ones. The Weasley twins are at the forefront. Their inventive minds and love for chaos make them perfect for prank - filled stories. Harry can also be involved as he has his own streak of daring. Then there are the other Gryffindors who might join in on the fun. Even some of the Slytherins could be part of the prank - related plots, either as rivals setting up counter - pranks or as unexpected allies in a particularly wild prank. Luna Lovegood might also make an appearance, adding her unique and dreamy touch to the pranks.
Obviously, Harry and Hermione are the main characters. Harry is the one who undergoes the transformation into Hermione. Ron is also often involved as he is their close friend and his relationship with both Harry and Hermione is an important aspect. Dumbledore might also make an appearance as he is always aware of what's going on in Hogwarts and could play a role in either helping Harry deal with the transformation or in uncovering the cause of it.
Often, it could be the young children of the main characters from the original Harry Potter series. For example, Harry and Ginny's child might be the focus. The parents themselves, like Harry and Ginny, would also be important characters as they guide their child through the potty - training process.