Given the title, Alvin is surely a central character. Besides him, there might be characters who are his victims of treachery. Maybe there's a character who is initially close to Alvin but then discovers his true nature. There could also be antagonists who oppose Alvin's treacherous ways, or perhaps other characters who are caught in the middle of the chaos he creates.
As we only know the title 'alvin the treacherous fanfic', it's hard to be definite about the main characters. Alvin is the obvious one. There could be a group of characters that Alvin deceives, perhaps a group of adventurers if it's a fantasy - based fanfic. There may also be a mentor - like figure who tries to guide Alvin away from his treachery, or a love interest that gets hurt by his untrustworthy actions.
I'm not certain as I haven't read it, but likely Alvin is one of the main characters since he is in the title. There could also be characters who are affected by Alvin's treachery, like friends or foes.
Well, without having read the 'alvin the treacherous fanfic' directly, it could center around the character Alvin's untrustworthy nature. Maybe it shows how Alvin's treachery affects other characters in the story. It could be set in a world where his actions create chaos, or it might be a more psychological exploration of what makes him treacherous and how others react to it.
Well, clearly Alvin and Theodore are the main characters. Alvin is often the more outgoing and sometimes mischievous one. Theodore, on the other hand, is usually the more gentle and kind - hearted of the two.
There could be a vampire hunter who is after Alvin. This hunter might be an old acquaintance who now sees Alvin as a threat.
Obviously, Alvin, Simon, and Theodore are the main stars. They are the ones who would be under the influence of hypnosis in this fanfic. There could also be other characters like Dave, their human caretaker, who might play a role in trying to break the hypnosis or dealing with the consequences of their hypnotized state.
The main characters are Alvin, Simon, and Theodore, the Chipmunks, and Brittany, Jeanette, and Eleanor, the Chipettes.
There could be the elder weremunk. This character would be very wise and have a lot of knowledge about the history and traditions of the weremunks. He could guide Alvin on his journey to becoming a weremunk. Another possible character is the rival weremunk. This one might not like Alvin joining their group and tries to cause trouble for him.
It depends on the nature of the story. If it's a story about a scientific discovery where one scientist steals the idea from another, then the two scientists are the main characters. Or it could be a story about a sports team where a player sells out the team's strategies to the opposing team, in which case the player and the team's coach or captain could be the main characters.
The main characters would be Alvin, Simon, and Theodore. Alvin would be leading the way in most of their high school escapades. Simon would be there to keep Alvin in check with his logical thinking. Theodore would be the heart of the group, always bringing a sense of warmth. Additionally, there might be a popular student in high school who becomes their rival at first but later becomes a friend. There could also be a school principal who has to deal with all the chaos that the chipmunks sometimes create.
In an 'Alvin and the Chipmunks Family Reunion Fanfic', Alvin, Simon, and Theodore are bound to be the central characters. They are the ones that most fans think of when they think of the Chipmunks. However, it could also include some of their extended family members. For example, an old - wise - looking chipmunk uncle who has stories from the past to tell. Or perhaps a young and mischievous chipmunk cousin who causes some light - hearted chaos during the reunion. And don't forget about Dave, who has been like a father to them. His presence would be crucial in bringing the family together and guiding the reunion.
In a fanfic where Alvin is in prison in the 'Alvin and the Chipmunks' universe, it could be a really interesting take on his character. He might face challenges from other inmates who don't like his upbeat and sometimes mischievous nature. However, Alvin could also bring some positive change to the prison, like starting a music group among the inmates to pass the time and boost morale.