I don't know for sure as I haven't read it. But it could be the main characters from 'glee' like Rachel, Finn, Kurt, or Santana. Maybe it focuses on one of them in a'stuck' situation.
There's no way to accurately say who the main characters are without reading the fanfiction. But given the nature of 'glee', it could involve any of the core members of the glee club. It might even introduce new characters that are in some way related to the existing ones and are the ones who are'stuck like a pig' in the story's unique plot.
I'm not sure specifically as I haven't read this particular 'glee' fanfiction. But generally, it might be about a situation where a character is in a difficult or trapped situation, similar to how a pig might be stuck, within the world of 'glee' with all its drama, relationships and musical elements.
Typically, the substitute teacher would be one of the main characters. They are likely to be the central figure around which the story revolves. And then, some of the students from the 'Glee' club would also be main characters. For example, characters like Rachel, Finn, or Kurt who are very prominent in the original 'Glee' series. Their interactions with the substitute would form the core of the story.
It could be some of the well - known characters from 'The Empire' who take on new roles in the context of the Glee club. Maybe Lucious Lyon could be one, bringing his strong - willed and often controlling personality into the club and causing some chaos.
There might also be characters that are minor in the original but become more prominent in the fanfiction. They could be given more complex personalities and important roles in the 'gloaming glee' story.
The main characters are Finn and Rachel. Finn is often portrayed as a bit of a jock with a big heart, and Rachel is the extremely ambitious and talented singer. In the context of the pregnancy fanfiction, they are the couple facing the life - changing event of having a baby.
Since it's a Glee fanfiction, it would likely include characters like Rachel Berry. She's often torn between her big dreams (her head) and her feelings for her friends and Finn (her heart).
The main characters are clearly Zane and Syrus.
Obviously, Percy would be the main character. He's the one stuck in Tartarus, so the story would revolve around him. Maybe Annabeth could also be an important character, even if she's not physically in Tartarus with him. Her thoughts and attempts to rescue Percy from afar could be part of the story.
Obviously, Ash would be the main character as he is the one stuck in the costume. His Pokémon like Pikachu, Bulbasaur, and Charmander could also be important characters. They could be the ones trying to help Ash get out of the costume, using their different abilities.
Obviously, Sam and Mercedes are the central characters. Sam, with his charm and good looks, and Mercedes with her powerful voice and confident personality. In the fanfiction, their relationship is at the forefront as they navigate the unexpected pregnancy, and other characters from 'glee' may also play supporting roles in their story.