Fugaku himself is obviously a very interesting character. His journey through time allows us to see different sides of him. He might be a strict and stoic clan leader in his original time, but during time travel, we can see his vulnerability and his struggle to adapt to different situations. Another interesting character could be his younger self. The interactions between Fugaku from different time periods can be really fascinating, as he tries to guide or understand his younger self. Also, any characters who are aware of the time travel and try to manipulate it for their own gain, like a rogue ninja who wants to change history to gain power, can add a lot of intrigue to the story.
Definitely Fugaku. His character development throughout the time travel is captivating. He has to reevaluate his beliefs and values as he experiences different eras. Then there are the other Uchiha clan members. For example, Itachi in the context of Fugaku's time travel can be really interesting. If Fugaku travels to a time when Itachi is young, he might see the early signs of Itachi's intelligence and loyalty, and it could change his relationship with Itachi in his original time. And the sages or time - keepers, if they exist in the fanfiction, who are in charge of the rules of time travel. Their motives and their interactions with Fugaku can make for some great storylines.
In Fugaku time travel fanfiction, Fugaku is a central and interesting character. But characters like Madara Uchiha can also be really engaging if they cross paths with Fugaku during his time travels. Madara's grand plans and his view of the Uchiha clan's future could clash with Fugaku's newfound knowledge from time travel. Also, any female characters in the Uchiha clan who might have different roles in different time periods. They could be strong supporters of Fugaku during his time - traveling adventures, or they could be secret opponents, adding a layer of mystery and drama to the story.
Morgan could be an interesting addition. He might accidentally get caught up in Chuck's time - travel adventures. His comical nature could provide some light - hearted moments in an otherwise complex time - travel plot, like when he misunderstands the technology or customs of a different time.
Issei himself is of course very interesting. His reactions to different time periods and how he uses his knowledge from the future can be really engaging. Then there's Rias. Her presence can add a layer of complexity, especially if she has different relationships with Issei in different timelines. Another interesting character could be Vali. His rivalry with Issei can take on new dimensions when time travel is involved, like competing in different historical battles or for the affections of a character in a different era.
Goku would be really interesting. His naivete in a time - travel situation could lead to all sorts of unexpected events. He might not fully understand the implications of changing the past and end up doing things just because they seem fun at the moment. Sanzo is also a great choice. His no - nonsense attitude in a different time period could create a lot of conflict, especially if he has to deal with the different cultural and social norms of the past. Another interesting character is Hakkai. His intelligence and ability to adapt would make for some really engaging time - travel stories as he tries to figure out how to use his skills in a new and unfamiliar time.
The pilot of Flight 19 is definitely an interesting character. He has the responsibility of leading the crew in this strange time - traveling situation. His leadership skills and decision - making abilities can be explored in different ways. Another interesting character could be the flight engineer, who might be the one to figure out how the time travel technology works.
Definitely Ben himself. His ability to transform into different aliens makes for interesting scenarios in different time periods. For example, in the past, he could transform into an alien that was thought to be a myth, causing all kinds of chaos or amazement.
Definitely Maka. She's always at the forefront of trying to make things right in the Soul Eater story, so it makes sense for her to be a time - traveler in fanfiction. Black☆Star could also be a character who time - travels. His ambition to be the greatest might lead him to go back in time to gain more power or change the past to prove his superiority earlier. And Crona might time - travel in an attempt to escape their tortured past or to prevent the events that made them so broken in the first place.
Kazama Chikage might be an interesting choice as well. He is a powerful and somewhat arrogant character. If he time - travels, perhaps to a past era where his clan was even more powerful, he could try to change history to make his clan even more dominant. Or if he travels to a future where his power is nothing compared to modern technology, his struggle to come to terms with his new position in the world would be an interesting plotline.
Iroh would be fascinating to see time - traveling. He has so much wisdom already. If he traveled to different times, he could share his knowledge and perhaps change some key events. He could also gain more insights from other time periods, which would further enrich his already deep understanding of the world.
One of the most interesting characters to include would be Orochimaru. His thirst for knowledge and immortality could lead to some really wild plot twists in a future time - travel fanfiction. Then there's Shikamaru. His intelligence could be used to strategize in a future full of new challenges. And Sakura. Her growth as a ninja and her relationship with Naruto and the others could bring a lot of depth to the story.
One character that would be fascinating is Medivh. As a powerful mage with knowledge of time and magic, he could either be a helper or a hindrance to Anduin. He might know secrets about the time travel that Anduin is doing and use it to his own ends. Another interesting addition could be Illidan Stormrage. His complex relationship with power and his own past actions could make for some intense interactions with Anduin as he travels through time.