The entire crew of Gold Roger could potentially be allies in a way. They are a tight - knit group. The OC could bond with different members over shared interests. For instance, the cook might share food with the OC and in return, the OC could help him find rare ingredients during their travels. This sense of community within the crew can be a strong support for the OC.
An OC who joined the Gold Roger crew later in their journey. This OC has a different view on piracy compared to the others. The story could be about how this OC's ideas start to influence the crew, causing some internal conflicts at first but eventually leading to a new and more united way of operating. This could show the diverse personalities within the crew and how they grow together.
There could be a wise old sage who has foreseen the OC's rebirth as the dark avatar and decides to guide them. This sage might have knowledge of ancient prophecies that suggest the OC can use their new power for good. Also, an unexpected ally could be an enemy of a greater evil. They realize that the OC's power as the dark avatar can be used to fight against a common foe.
Leon S. Kennedy could be a potential ally. He's experienced in dealing with the RE monsters and has a strong sense of justice. He might see the oc as a valuable asset in the fight against the bio - threats and offer his protection and guidance.
Aang could be an ally. Despite the OC being Ozai's son, Aang, with his forgiving nature, might see the potential for good in the OC. He could help the OC to understand the importance of balance and peace.
Susannah could be a great ally. She's strong - willed and has her own unique abilities. An OC might find her to be a valuable friend as she can offer both physical and mental support. For instance, her Detta Walker side can be quite fierce in a fight, while her Susannah side is more level - headed and can offer good advice.
Potential allies for an OC in 'Dragon Ball Z OC Rebirth Fanfiction' could include Android 18. She has her own sense of justice and could team up with an OC for a common cause. Yamcha might also be an ally. He has a lot of experience in fighting and could share some useful combat tips. The Kaioshin of Time, Chronoa, could be an interesting ally. She has the power to manipulate time and could help an OC in situations where time - related powers are needed. Additionally, the Galactic Patrol could see an OC as a valuable addition to their team in protecting the galaxy and offer their resources and protection.
His mother Tsunade could be one of his first and most important allies. She would surely use her influence and skills to protect and guide him. Shizune could also be an ally, as she has been with Tsunade for a long time and would likely support the OC. Additionally, Naruto could be an ally, as he is known for befriending and helping out those in need in the ninja world.
One idea could be that the OC is a long - lost relative of Gold Roger. They embark on a journey to discover the secrets he left behind. Maybe they find a hidden map in an old family heirloom that leads to a powerful treasure. Another plot could be the OC being a former crewmate of Gold Roger who was thought to be dead. They resurface to protect something Roger entrusted to them from the wrong hands.
Issei could be a potential ally. He is always getting into adventures and might see the OC as a valuable addition to his group. Also, Rias might be an ally as she is often involved in power plays and could use the OC's connection to Grayfia to her advantage while also providing protection to the OC in return.
Obviously, Alfred is a key ally. He has all that knowledge about Batman's operations and can be a great support to the reborn character. Commissioner Gordon is also an important one. His connection to the police force can be very useful for the reborn Batman in fighting crime.