Their relationship with other Twilight characters can also help develop them. If Laurent has to face off against Jacob, how does he react? And how does Irina support or not support him in this? Also, if they interact with the Cullens more, it can show different sides of their characters. For instance, when around Carlisle, do they show respect or are they more defiant? These interactions can add layers to their personalities.
They could be developed by giving them new powers or abilities. Suppose Laurent discovers he has the ability to manipulate the weather in a small way. This new power could change his self - perception and how others, including Irina, see him. Irina could develop the ability to communicate with animals. This would not only make her more interesting but also create new storylines where she uses this ability to help Laurent or in their adventures together.
One idea could be that Laurent tries to redeem himself in Irina's eyes. Maybe he saves her from a dangerous situation, like a group of rogue vampires. This would start to change her view of him from being just a somewhat untrustworthy vampire to someone she could potentially care about.
Another way is to put them in situations that challenge their loyalty to the Volturi. In the Twilight world, the Volturi are very powerful and feared. But if Jane and Demetri are faced with a situation where they have to choose between doing what the Volturi want and what they believe is right, it would show different aspects of their characters. They could also interact more with other characters outside of the Volturi, which would force them to adapt and grow.
To develop Demetri further, you could explore his past. Maybe he had a human life before being turned that he barely remembers, but certain events in the fanfiction could trigger those memories, adding depth to his character. For Heidi, you could show more of her vulnerability. She's often seen as this seductive figure, but what if she has insecurities about her role in the Volturi?
For Bart, you could explore his softer side more. Show how he really cares about his family deep down, even if he acts out. For Lisa, perhaps show her struggling with non - academic things like making friends outside of her usual intellectual circle.
You could also develop their characters through their relationships with other characters in the fanfiction. If they have friends or foes, how they interact with them can reveal more about who they are. For example, if they have an enemy, do they fight back bravely or try to find a peaceful solution? This can tell us a lot about Reiji and Xiaomu.
Victoria's character can be developed by making her more assertive. In the context of fanfiction with Agent 47, she could start to take on more dangerous tasks and prove herself. For example, instead of always relying on Agent 47 for protection, she could save him in a crucial moment, which would show her growth and independence.
For Hansel, you could show his growth from a scared little boy to a brave young man. Maybe he starts learning self - defense techniques after the encounter with the witch. Gretel could be developed as a more strategic thinker. For example, she could start making maps of the forest and surrounding areas to prevent them from getting lost again.
For Shane, his character can be developed by showing his insecurities behind his confident facade. Maybe he's afraid of not living up to his family's musical expectations. For Mitchie, her growth could be shown as she becomes more assertive in the music world. For example, she could start taking more risks with her music style after being influenced by Shane.
One way to develop both characters is through their relationships with other characters in the fanfiction world. Agent 3 could be made to interact with a mentor - like figure who helps them see a different perspective on their work. Agent 4 could form a friendship with a new recruit and learn to be more of a leader. This would not only develop their individual characters but also show how they influence those around them.
To develop their characters further, we could explore their relationship with the other animals in the Pride Lands more deeply. Simba could interact more with the meerkats and warthogs, learning from them and bringing new ideas back to the pride. Nala could form closer bonds with the lionesses, and together they could start new traditions in the pride. This would show different aspects of their personalities and how they contribute to the community. Also, we could see how they handle conflicts within the pride, like when some of the younger lions question the old ways. This would test their patience and wisdom, and help them grow as characters.