The Time Twins themselves can be the focus. There's a lot of potential in exploring their relationship, their motives for wanting to control time, and how they became so powerful. Fanfiction can give them more depth and backstory, perhaps showing a more sympathetic side to their actions in the original series.
Kai is often a popular choice. His connection to the story through his family ties makes him an interesting character to explore further. Also, his hot - headed nature can lead to some great character - development moments in fanfiction.
Nya is also very popular. As the only female ninja at the time of the Hands of Time arc, she brings a different perspective. Fanfictions can focus on her struggle to balance her role as a ninja and her new - found powers related to water and time.
The protagonist is often a popular choice. Their journey through time and the decisions they make can be explored in great depth. Also, any character with a mysterious past can be interesting. For example, a character who seems to know more about the time - related phenomena than they let on. Their backstory can be delved into and new storylines can be created around them.
The main protagonist is often a popular choice. Their journey through the time twists provides a lot of room for character development and exploration. Also, any mentor - like characters can be interesting to focus on. They usually have more knowledge about the time - related phenomena and their backstories can add depth to the fanfiction. For example, if there's an old wizard who has been observing time for centuries.
Liam O'Connor is often a popular choice. His leadership skills and his complex backstory make him an interesting character to explore further. Writers can delve into his past and how it affects his actions in different time - traveling scenarios.
Charles Wallace is a character that many fanfiction writers like to focus on. His unique intelligence and his connection to the strange entities in the story can be delved into deeper. For example, a fanfiction could explore what would happen if his connection was severed and how he would cope. The Mrs. W's (Mrs. Whatsit, Mrs. Who, and Mrs. Which) are also popular. Writers can create new adventures for them, or explore their pasts in more detail.
Definitely the other ninja characters like Lloyd, Kai, and Jay. Their different personalities and powers would add depth to the story. Also, the villains from the Hands of Time series could be included to create conflict. For example, Acronix and Krux could be constantly trying to stop the sister from achieving her goals.
I think Kai would be a great focus. His hot - headed nature could lead to some really chaotic time - travel situations. For instance, if he travels back to a time when the Fire Temple was in danger, he might rush into action without fully understanding the consequences, and end up changing the future of the Fire Element in Ninjago in unexpected ways.
Obviously, the wife and the husband are very popular. Their relationship is at the core of the story, so exploring their characters more deeply is always interesting. But also, side characters like the wife's best friend or the husband's colleague could be focused on. For example, the best friend could discover the wife's time traveling secret and have to deal with that knowledge.
Connie Edwards can also be a great focus. Her relationship with Phil and her role in solving the murders offer a lot of room for creativity in fanfiction. Writers can delve into her emotions, her detective skills, and how she copes with the strange world she's thrust into.
John Lennon is often a popular choice. His charisma and creative genius make him a fascinating character to interact with in time - travel scenarios. Writers can explore his thoughts and his impact on the music world from a different perspective.
Sly Cooper himself is obviously a very popular choice. His charm, skills, and family legacy make him a central figure. Bentley is also popular as he is the brains behind the operations and his gadgets add an interesting element. Murray is loved for his strength and his loyalty to the gang.