Sirius Black would be an interesting character to put in the fanfiction. He has his own history with the dark arts and could offer a different perspective on Barty's actions. And Neville could also be included. His growth and courage could inspire both Harry and Barty in different ways. Neville might stand up to Barty in a situation where others might not, showing his new - found confidence.
Harry is the central figure around which the story often revolves. He is curious and brave. Barty, in this context, becomes an important counterpart. He is intelligent and has a certain charm that draws Harry towards him. There could also be other minor characters like Hermione and Ron who might be initially suspicious of Barty but gradually accept their friendship.
Well, there's a fanfiction called 'Barty Crouch Jr: A Different Path'. In this one, the author imagines what would have happened if Barty Crouch Jr had not followed Voldemort. It gives a whole new perspective on his character. Also, 'The True Nature of Barty Crouch Jr' is really interesting as it tries to uncover the real motives behind his actions in the original story.
The relationship could start with hostility. Harry, knowing all the bad things Crouch Jr. has done, is full of hatred. But as the story progresses, he could learn about Crouch Jr.'s tragic backstory, which might make him more empathetic.
I think Luna Lovegood would be an interesting character to include. Her unique perspective on magic and the world around her could add an element of mystery and wonder to the fanfiction. Also, Severus Snape. His complex past and relationship with both Harry and Tom (in a way, as Tom became Voldemort) could bring a lot of depth to the story. And Hagrid, who could provide a connection to the more gentle and nurturing side of the wizarding world, which might be important for Harry and Tom's relationship development.
For a more villainous touch, including Voldemort or his followers could create high - stakes situations. Bellatrix Lestrange could be a terrifying adversary for Harry and Gabi. On the other hand, adding new original characters, like a powerful but reclusive wizard who lives in the Forbidden Forest, could also make the story more exciting.
Dumbledore. His vast knowledge of magic and the wizarding world could play a crucial role. He might have some prior knowledge about the origin of the creature situation involving Harry and Voldemort. He could also offer guidance and wisdom, perhaps even try to find a way to use the situation to finally defeat Voldemort in a more permanent way.
The person who killed Barty Crouch in fanfiction is highly unpredictable. It could be a dark wizard who emerges from the shadows or a close ally with a hidden agenda.
Well, it could be about Harry and Barty getting to know each other through a shared interest in magical creatures. Maybe they meet in the Forbidden Forest while Harry is on detention and Barty is secretly researching a rare creature there.
Hermione would be a great addition. She could be the voice of reason and also use her vast knowledge of magic to help Harry and Draco in their high - stakes situation. For example, when they are facing a complex magical puzzle as part of their mission.
Perhaps a fanfiction where Barty, after being exposed, somehow has a chance at redemption and forms an unlikely alliance with Harry to fight a greater evil that threatens the wizarding world. They could learn from each other's strengths and weaknesses. For example, Harry's pure heart could influence Barty to turn away from his dark past.