Well, obviously Daenerys herself is a main character. Her baby also plays a crucial role, often having some sort of special ability or significance related to the time travel. Sometimes, characters from different time periods that she interacts with during her time travels also become important, like ancient dragonlords or long - forgotten sorcerers.
In some fanfics, there could be a mermaid or a sea creature as a main character. The mermaid could have the power to help the boatbaby time travel, or they could be a key to solving some mystery in a different time period. For example, the mermaid might know the location of a magical item that the boatbaby needs to return to their own time.
There could be a fanfiction where Daenerys' time travel with her boatbaby is an accident. They end up in a time when dragons were just starting to be tamed. Daenerys, with her knowledge from the future, becomes a sort of dragon - training legend. She uses this new - found status to build a new empire that is more just and prosperous than the ones she had known in her original timeline.
Well, of course, Camren themselves are the main characters. They are the ones going through the time - traveling adventures.
Sometimes other characters also play significant roles. For instance, Kakashi might be involved. He could be the one who discovers Naruto and Sakura's time - traveling situation or provide some guidance based on his own knowledge and experience. And Sasuke could also be part of the story, perhaps as a source of conflict or as someone whose actions in the past need to be changed.
There could also be a mentor - like character. This might be someone who has more knowledge about time travel and the Maulkiller universe in general. They guide the time traveler, giving them advice on how to navigate the different time periods and deal with the consequences of their actions.
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.
Typically, the Marauders are the main characters. James Potter, with his charm and Gryffindor bravado. Sirius Black, the rebellious and loyal friend. Remus Lupin, the calm and intelligent werewolf. And Peter Pettigrew, though his role might be more complex given his later actions. These four are central in marauders travel forward in time fanfiction as they navigate the future wizarding world.
Well, Inuyasha and Kagome are almost always involved. They are the central characters of the original series, so it's natural for them to be in time travel fanfictions. Kagome is the one who can travel through the well between her time and Inuyasha's time in the original story, so she often plays a key role in any time - travel - related plot. Inuyasha, with his half - demon powers and his connection to the past of the feudal era, is also crucial.
Obviously, Dan and Phil are the main characters. They are the ones who usually initiate the time travel, whether it's by accident or on purpose. Sometimes, their friends or family members from different time periods might also be important characters. For example, if they travel back to their childhood, their younger selves could be considered main characters in that part of the story.
Obviously, the main members of Team Natsu like Natsu, Lucy, Gray, Erza, and Happy are always involved. They are the core of the group and any time travel adventure usually revolves around them.