There might be some rivals or fellow novice alchemists. They could compete with the main novice alchemist, which adds some tension and drama to the story. Their different personalities and approaches to alchemy would make the interactions interesting.
One key feature could be the unique world - building. It might create a vivid alchemical world with its own rules and magic systems. For example, there could be different types of alchemy ingredients and spells.
The main character is the one who gets reincarnated as an alchemist. His name might vary depending on the specific version, but he's the central figure. There are also often his mentors or teachers in the world of alchemy. They play important roles in guiding him on his journey to master alchemy. And then there are his friends or comrades he meets along the way, who join him in his adventures and challenges.
I don't know for sure since I haven't read the novel. But usually, there would be the chaos alchemist as the main character. There might also be a mentor figure who teaches the alchemist the ropes, or a sidekick who accompanies the alchemist on their adventures.
The main character is, of course, the peerless alchemist himself. His name might vary depending on the specific translation, but he is the central figure driving the story forward with his alchemical skills and adventures.
I'm not sure as I haven't read it, but it's likely that the first alchemist is a main character. There could also be a mentor figure who guides the alchemist in the early days of their journey, and perhaps an antagonist who tries to stop the alchemist from achieving their goals.
In 'Reborn as a Space Mercenary', the main character is Ikoma. He has to manage his small crew, deal with different alien races, and ensure the survival and growth of his mercenary business. He has to balance combat skills with management abilities to succeed in the space - themed world.
The main character is surely the last surviving alchemist. There may also be some side characters like his friends or foes. His friends could be those who support him in his journey, perhaps other scholars or people who believe in the power of alchemy. His foes might be those who want to use his knowledge for evil or those who oppose alchemy altogether.
Edward Elric is a very popular character. His determination and his journey in the world of alchemy, despite his physical losses, make him a memorable and beloved character.
I'm not sure exactly who the main characters are without more information. But typically in an alchemist - themed visual novel, there could be an alchemist protagonist.
The main character is Santiago, a young shepherd boy. And then there's the alchemist, who plays a crucial role in guiding Santiago on his journey. There are also other characters like the crystal merchant who Santiago works for at one point, and Fatima, the girl Santiago falls in love with.