Definitely Draco Malfoy. His internal struggle between his family's Death Eater ties and his own sense of right and wrong could be a central theme in the fanfic as he decides to take care of Harry. Then there's Theo Nott. He's a bit of an underrated Slytherin character in the original series, but in this fanfic, he could be the one with a lot of knowledge about dark magic and use that knowledge to protect Harry from any dark spells. And don't forget about Daphne Greengrass. She could be the voice of reason among the Slytherins, convincing them that taking care of Harry is the right thing to do.
One main Slytherin character could be Severus Snape. Although he's a teacher, he's a Slytherin and his complex relationship with Harry in the original books could be explored further in this fanfic. He could be secretly guiding other Slytherin students to take care of Harry. Another would be Millicent Bulstrode. She's a strong - willed Slytherin, and she could be the muscle in the group, physically protecting Harry when needed. And Gregory Goyle or Vincent Crabbe could also be part of the Slytherin group taking care of Harry. Maybe they start off as just following Draco's lead, but then develop their own reasons for protecting Harry.
One possible plot twist could be that the Slytherins, who are often seen as the 'bad guys' in the Harry Potter universe, discover a prophecy related to Harry while taking care of him. This prophecy might not be the same as the one in the original story and could lead them to protect Harry in a way that goes against their traditional Slytherin values. For example, they might have to form alliances with Gryffindors or other houses they usually oppose.
The Slytherin house's reputation would likely improve. In the original story, Slytherin is often associated with dark magic and evil intentions. But if they take care of baby Harry, it shows that they are capable of kindness and selflessness. People would start to see that not all Slytherins are bad, and there are good - hearted individuals within the house who can look past the enmity between houses and do the right thing.
One heartwarming moment could be when the Slytherins protect Harry from a bully in Hogwarts. They might use their cunning to outwit the bully without using magic, showing that they care about Harry's well - being even in non - magical ways.
One plot idea could be that the Slytherins secretly protect Harry from the more dangerous Death Eaters within their own families. They use their knowledge of the Slytherin common room's hidden passages to hide Harry when there's a threat. Another could be that a group of Slytherins form a sort of 'underground' protection squad for Harry after they realize he's the key to defeating Voldemort and they don't want Slytherin to be on the losing side. Maybe they start by leaving him helpful potions and anonymous notes with useful information.
At first, Harry might be suspicious. But as the Slytherins keep showing kindness, he starts to see them in a new light. He realizes that not all Slytherins are like the ones he initially thought were mean.
Well, it could be characters like Draco Malfoy. In the original series, he had his moments of growth and in fanfics, he might be one of the main Slytherins to defend Hogwarts. Maybe he finally realizes the importance of the school and his own values change. He could be joined by other Slytherins who were perhaps overlooked in the official story but show their true courage in the fanfic.
There could also be other important characters like the Slytherin house - mates. Maybe a really cunning and ambitious friend who helps or hinders the main character's journey. And of course, there might be appearances from the more well - known characters from the original Harry Potter series, like Draco Malfoy, who could play a significant role in the fanfic, either as an adversary or an unexpected ally.
Obviously, Harry Potter himself is the central character. His journey in Slytherin would be the main focus.
Draco Malfoy could be one. In some fanfictions, as he grows older, he might have a change of heart and save Harry. Despite their long - standing rivalry, he could realize the greater good and step in to help Harry when no one else can.
Draco Malfoy could be one of the main Slytherin characters. Despite his past differences with Hermione, he might have a change of heart when he witnesses the abuse. He could use his family's influence to stop it. Another could be Pansy Parkinson. She may initially be reluctant, but as she sees the injustice, she steps in. Maybe she uses her sharp tongue to put the abusers in their place.