One possible main character could be a scientist who discovers the signs of the old gods' return and the approaching aliens. They try to warn the world but are met with disbelief. Another main character could be an alien envoy sent to make peace with the old gods. And then there are the old gods, who are both powerful and mysterious. Their actions and decisions would drive the story forward as they interact with the humans and aliens.
Well, in an 'old gods returning aliens story', it might be that the aliens are actually related to the old gods in some way. For example, the aliens could be the descendants of the old gods who left Earth long ago and are now coming back. The return of the old gods could trigger a series of events that change the world's power balance. And the humans are caught in the middle, trying to figure out who to side with.
An old grandfather who lives in the house could be a main character. He has a lot of stories and wisdom. Maybe he has had some previous encounter with aliens when he was young and now he can help the family deal with the situation in the attic. He could be the one to bridge the gap between the humans and the aliens.
In the 'old gods story', there are many main characters. For instance, in Celtic mythology, Cernunnos is a significant old god. He was often associated with nature, fertility, and the wild. Another is Brigid, a goddess of fire, poetry, and healing.
In addition to the regular Naruto characters, some of the more powerful monsters could be main characters too. For instance, a giant dragon - like monster that has the power of flight and can breathe ice. It could be a reluctant ally at first but then grow to respect Naruto and his friends. And among the aliens, there could be a leader - type character who is extremely intelligent and has unique powers that pose a great threat to the Naruto world.
Ruby Rose could definitely be one of the main characters. Her leadership skills and curiosity would make her interested in these aliens from Earth. She might be the one to initiate contact or try to understand their motives.
There are cowboys, of course. And probably some alien leaders or important alien characters.
The main characters could be a diverse group. There might be a brave human explorer who is the first to make contact with the aliens. Or it could be an alien with special powers or knowledge that plays a crucial role. There may also be supporting characters like scientists or military personnel who are involved in the events related to the aliens.
The aliens are the obvious main characters as they are the ones with the strange affinity for underpants. There might also be some human characters who are either oblivious to the aliens' interest or are involved in some sort of interaction with the underpant - loving aliens, for example, a child who discovers that his underpants are missing because the aliens took them.
In the 'aliens love underpants printable story', the most prominent characters are the aliens. These aliens are characterized by their strange attraction to underpants. There could be different types of aliens with different personalities within the story, all united by their love for underpants. And as I mentioned before, there may be some human characters in the background, either as bystanders or as those who eventually interact with the underpants - loving aliens.
The main characters include Susan Murphy, who becomes Ginormica. There's also The Missing Link, B.O.B., and Insectosaurus. And of course, the alien villain Gallaxhar.