Brendan would be a great addition. He could bring in his own set of skills and Pokemon, and his competitive nature could add some interesting dynamics to the story. Also, he has a history with May which could be explored further in the fanfiction.
Professor Birch would be an interesting character to add. His knowledge of Pokemon could be crucial in helping May and Steven solve any mysteries they come across. For example, if they encounter a strange, new Pokemon behavior, Professor Birch could provide scientific explanations and possible solutions. Also, his bumbling but endearing personality could add some light - hearted moments to the fanfiction.
Ash would be a great addition. Since he's a well - known character in the Pokemon universe, his presence could add more adventure and action. He could offer his own unique perspective on things and also be involved in some friendly Pokemon battles with May and Drew.
Definitely Team Rocket. Their constant attempts to steal Pokemon would create a lot of action and comedic moments. Nurse Joy is also important as she can heal their Pokemon when they are injured. Officer Jenny can be there to enforce the law when Team Rocket causes trouble. And Cilan from the Unova region. His expertise in Pokemon types and flavors could add a unique aspect to the story.
One character that would be interesting to include is Ziva's father, Eli. His complex relationship with Ziva could add depth to the story. Maybe he has some ulterior motives for their undercover mission. Also, bringing in some of the international contacts that Ziva has from her Mossad days could be great. They could provide unique help or challenges during the undercover work. And don't forget about Palmer. He could be the one who discovers some crucial medical - related evidence that helps Ziva and Tony in their mission.
Lapis Lazuli could be a great addition. She has a complex relationship with Peridot, and her presence could add some drama and depth. For example, she might be initially suspicious of Steven and Peridot's friendship, thinking that Steven is influencing Peridot too much. But over time, she could come to see the positive aspects of their bond.
Brock would be an excellent character to include. He has been with Ash and Misty for a long time and his knowledge of Pokemon and their care adds a lot to the story. Also, Pikachu is a must - have. Pikachu is Ash's closest companion and its cute and powerful nature always makes for great interactions. Another good character could be Tracey. He can bring in his drawing skills and his unique perspective on Pokemon. His addition can create some interesting storylines, like him trying to draw a new and rare Pokemon that Ash and Misty encounter.
Pikachu is a must - include character. Since Pikachu has been with Ash from the start, it would add a sense of familiarity and also provide great comedic moments and powerful battle assistance. Brock could also be a good addition. His knowledge of Pokemon care and breeding could be useful in the story.
Yoda should be included. His wisdom and connection to the Force could be a guiding light for Luke and Mara. He could offer them valuable teachings and insights that would help them in their adventures. Leia Organa is also a great choice. Her leadership skills and political acumen could play a role in a larger plot, and her relationship with Luke as siblings could add an extra layer of complexity to the story.
Cosmo and Wanda would be great characters to include. They are Timmy's fairy godparents and can add a lot of magical chaos and humor to the story. Also, Jorgen Von Strangle could be included as he often pops up to enforce fairy rules. His no - nonsense attitude would contrast well with Timmy and Chloe's more light - hearted natures.
Well, I think Professor Oak could make an appearance. He could be invited to the high school to give a lecture on Pokemon evolution. This would not only be educational for May and Drew but also add an element of excitement. Then there's Gary. He could be a senior at the high school who is always showing off his advanced Pokemon knowledge and collection, which annoys May and Drew at times but also motivates them to do better. And of course, Nurse Joy. She could be in charge of the school's Pokemon infirmary and help May and Drew when their Pokemon get injured.
Garnet could be a great addition. Her wisdom and calm nature could provide some contrast to Steven and Amethyst's more impulsive personalities. She could also offer some valuable advice to them during their adventures.