Harry himself is a central character in these fanfictions. His relationship with snakes is often explored in different ways. He could have a natural affinity for snakes that he discovers later in life. This might lead to him being able to communicate with all snakes, not just Parselmouth - related ones, and he uses this ability to gather information or solve mysteries within the wizarding world.
Nagini is quite popular. Since she was Voldemort's snake in the original series, fanfiction often explores her backstory. Maybe she wasn't always evil but was forced into servitude. Another popular character could be a new snake created by the author. This snake might be a magical hybrid with unique powers, like the ability to change colors to blend into different environments and help Harry in his stealthy missions.
Salazar Slytherin is often involved in snake - related fanfiction. As the founder of Slytherin and someone associated with snakes, he can be portrayed in different ways. In some fanfictions, his spirit communicates through snakes to Harry, guiding him to understand the true meaning of Slytherin's legacy. Also, there are fan - created snake characters that are friends or foes of Harry, which add new dimensions to the story.
Obviously, Harry Potter is one of the main characters. And the snake, which could be a unique creation within the fanfiction, is also a main character. It might have its own personality and abilities that are different from normal snakes in the Harry Potter universe.
Obviously, Harry Potter would be one of the main characters. And the snake, which plays a crucial role as per the title. There might also be other characters from the original series like Hermione and Ron, who could interact with Harry in the context of his new relationship with the snake.
In some fanfictions, Voldemort could also be a key character in relation to the snake king. Since Voldemort had a connection with snakes, he might either be in conflict with the snake king for power or try to control it. Additionally, there could be original characters created for the fanfiction. For example, a young wizard who has a special gift for understanding snakes and becomes the mediator between the snake king and the human wizards. This character could bring a fresh perspective to the story and help in building a relationship between the two very different worlds of humans and the snake king.
It could also be a snake from the Forbidden Forest. There are many unknown and mysterious creatures in there. A snake from that forest might be more in tune with the natural magic of Hogwarts. Harry, being the curious and kind - hearted person he is, might come across it during one of his adventures in the forest and start a friendship with it.
It could be Nagini. Even though in the original series she was more of a servant to Voldemort, in the fanfiction, she could have a different personality and form a bond with Harry.
In some cases, it could be a character related to one of the main characters from the books. Like a long - lost cousin of Harry Potter who is a snake animagus. This would add a new dynamic to the story and connect it to the original plot in an interesting way.
Obviously, Harry Potter himself is likely to be a main character. Since it's about his encounter with a snake, he's going to be at the center of the story.
Maybe it's an anonymous gift from someone who has been observing Harry. This person could be a former student of Hogwarts who has a special connection to snakes and sees that Harry has a kind heart and would take good care of the snake. So they leave the snake for Harry to find with a simple note that just says 'For Harry Potter'.
There could be some out there, but it's not a common enough trope that I can immediately name a popular one. Usually, when it comes to Harry Potter fanfiction involving snakes, it might be more about his Parseltongue ability in general rather than this very specific'squinting at a snake' situation. However, it's possible that in some niche communities or on certain fanfiction websites, there could be some hidden gems with this scenario.
In addition to Harry, there could be a unique snake character that is a main character. This snake could have its own personality and motives. It might be a magical snake that has been around for a long time and has knowledge of hidden secrets in the wizarding world. Dumbledore could also be a main character as he often guides Harry in the original series and would likely do so in this fanfic as well, especially with Harry's new snake - related situation.