Obviously, Lily Evans and Harry Potter are the main ones. Since it's about time travel related to them. But sometimes, James Potter can also be a major focus as he is related to Lily and Harry. Also, Severus Snape might be a key character as he has a complex relationship with Lily.
Lily Evans and Harry Potter are the most focused - on characters. Lily as she is the key figure in the time travel aspect. Harry as he has a strong connection to Lily and the whole story. Besides them, Remus Lupin could be an important character. He was part of the Marauders, and his knowledge and experiences could play a role in the time - travel story. Voldemort might also be a significant character. His actions in the past are often a target of change or exploration in time - travel fanfictions related to this, as the characters may try to prevent his rise to power.
The main characters are often Lily Evans and Harry Potter. Lily because she is the center of the time travel concept in this fanfiction. Harry, on the other hand, is either traveling with her or is the reason for her time travel in some cases. Additionally, Sirius Black could be a character of focus. He was one of James Potter's best friends, and his actions and decisions in the past could be influenced or explored through the time travel plot. And of course, Albus Dumbledore might also be a character that gets involved, as he always seems to have a hand in the major events in the Harry Potter universe.
The main characters are James Potter and Lily Evans, of course. James is a popular and sometimes mischievous wizard at Hogwarts. He's known for his talent in Quidditch and his group of friends. Lily, on the other hand, is a bright and intelligent witch. She's kind - hearted but also has a strong will, which makes her very interesting.
Often, other crew members from the Enterprise also make appearances. Bones, for example, might be involved in helping Kirk and Spock deal with the consequences of time travel. He could be the one who discovers some medical anomaly caused by the time shift and helps them find a way to fix it while also being skeptical of the whole time travel situation.
Harry Potter himself is often a main focus. Since the title has 'Second Chances', it could be about Harry getting another opportunity to deal with his past traumas or make different choices. Hermione Granger is also commonly focused on. Maybe she gets a second chance to show her intelligence in a different way or to fix a relationship that didn't work out as well in the original story. Ron Weasley too, perhaps he has a chance to be more confident or to be a better friend in these fanfictions.
Well, obviously Harry Potter and Severus Snape are the main characters. Harry is the protagonist we know from the original series, and Snape is the strict professor. Their interactions during detention are what the fanfiction is usually about.
One common theme is the exploration of family bonds. Since Harry never really got to know his mother, time travel allows for a deep exploration of their relationship. Another theme is the alteration of the past and its consequences. Writers often play with the idea of how small changes in the past due to Harry and Lily's interaction can have a big impact on the future of the wizarding world.
One interesting plot could be Lily traveling back in time to prevent James and Sirius from playing a particularly dangerous prank that had unforeseen consequences. Another might be Harry traveling back to meet his mother as a young witch and getting to know her in a whole new way. And perhaps Lily and Harry traveling back together to change certain events that led to the rise of Voldemort, like preventing the first opening of the Chamber of Secrets.
A scenario could be that Lily travels back to her Hogwarts days and tries to change the way she treated Snape. This could have a huge impact on Snape's future actions and loyalties. Maybe she could have been more understanding of his difficult situation, which might have led to him not being so easily swayed by the Dark Arts.
Sometimes other characters from the Harry Potter series also make appearances. For instance, the Weasley family. Molly Weasley might be over the moon with the news and offer her own brand of motherly advice. And Ginny could be a great source of support for Hermione, sharing her own experiences as a mother.
There's also 'MagicWriter12'. They are known for their unique interpretations of Lily Evans. Their fanfictions might take a different approach, like showing Lily in alternate universes or in situations that were not explored in the original books. Their creativity and ability to bring new life to the character make their works stand out.
Harry Potter himself is often a main character. He might use the time travel necklace to gain more knowledge about his parents or to find a way to defeat Voldemort more effectively.