Obviously, Liza and Tate are the main characters. They are the Gym Leaders in Sootopolis City in the Hoenn region. They are twins and specialize in Psychic - type Pokemon battles.
There could also be other important characters in the fanfic. For example, the trainers who come to challenge Liza and Tate at their gym. These trainers could have their own unique backstories and goals, and their interactions with Liza and Tate could drive the story forward. Maybe there's a young trainer who has a special connection with a Psychic - type Pokemon and is seeking guidance from Liza and Tate.
One idea could be that Liza and Tate discover a new, mysterious Pokemon in the Sootopolis Gym that has powers they've never seen before. They have to figure out how to handle this Pokemon while also dealing with trainers who come to challenge them.
There are several places to look for Pokemon Tate and Liza fanfiction. FanFiction.net is a great start as it has a wide range of stories. Archive of Our Own also has a good selection. Another option is to search on Tumblr. Some Tumblr users create and share their fanfictions, and you might come across some interesting Tate and Liza ones. You can also try using Google to search for 'Pokemon Tate and Liza fanfiction' and see what comes up.
One good Pokemon Tate and Liza fanfiction could be about their journey before becoming Gym Leaders. It might explore how they trained their Pokemon and the challenges they faced together. Another could focus on a special mission they undertake in the Hoenn region, perhaps to protect a rare Pokemon species. There are also fanfictions that might show their daily life in the Gym, dealing with trainers who come to battle.
Obviously, Liza would be the main character. There could also be her best friend, let's say Sarah, who is always there for her during the pregnancy, giving her advice and support. Her mother could also be a character, who might be overbearing at times but means well. And perhaps there's a mysterious neighbor who has some old - fashioned remedies for pregnancy - related issues.
I don't know the specific main characters in the 'liza hexam graphic novel'. However, in most graphic novels, there are usually protagonists and antagonists. Liza Hexam is probably a central figure. There could be a mentor - like character who helps her on her journey, or a rival who creates conflict. There might also be side characters that add depth and color to the story, like her best friend or a quirky neighbor.
Since we don't know the exact details of 'the gathering pokemon fanfic', the main characters could be a group of young and enthusiastic Pokémon trainers. They might be on a journey to become the best and this gathering could be a crucial part of their adventure. It could also feature some Pokémon with special personalities as sort of secondary main characters, like a Pikachu that has a unique ability compared to others. Another possibility is that there are some wise old Pokémon trainers who are the main characters, guiding the younger ones during the gathering.
It could be the challenger themselves. They are usually the central focus, with their own personality, goals and dreams. Maybe they have a rival who is also a main character, constantly competing with them.
The Akatsuki members are the main characters. They bring their own unique abilities and goals. For example, Hidan's immortality could play an interesting role in the Pokemon world. He might be more reckless in battles because he knows he can't die easily. Kisame, with his shark - like appearance, could have an affinity for Water - type Pokemon and be really strong in underwater Pokemon battles. These characters' interactions with the Pokemon and each other are what drive the story in an Akatsuki Pokemon Fanfic.
It could be Pikachu as a main character. Since Pikachu is one of the most popular Pokémon, it would be likely to be involved in the story, perhaps bouncing on the trampoline and having a great time.
Obviously, Cheryl is one of the main characters. She's the center of the fanfic's story. Depending on the plot, her Pokemon would also be important characters. For example, if she has a Pikachu, that Pikachu would play a role in her adventures.