The protagonist is usually a young person, often male. He is the one with the cheat ability. There are also wise old mentors. They guide the protagonist in understanding and using their powers. And then there are the villains. They are powerful and oppose the protagonist, trying to stop him from achieving his goals.
Typical characters include the protagonist who is the central figure with some sort of special ability or cheat. There are sidekicks, who are friends or companions of the protagonist. They support the protagonist in battles or quests. There are also powerful rulers in the new world, who may either be allies or enemies depending on the situation. They have their own interests and agendas in the world.
There might also be side characters. Some side characters could be friends or allies of the protagonist. They might rely on the protagonist's cheat skill at times, or they could have their own unique abilities that complement the protagonist's. For example, a side character could be a great healer while the protagonist is more focused on combat with their cheat skill.
There are often heroes. They are brave and usually have some special abilities or skills that help them in their adventures. Wizards or mages are also common. They can control magic and are often the ones with great knowledge. And there are usually monsters. These can range from simple goblins to powerful dragons.
I'm not sure exactly who the main characters are without reading the novel in detail. But it's likely that the protagonist is the one who has access to the modern weapons cheat. There may also be characters who are native to the other world, such as powerful wizards or warriors who interact with the protagonist in various ways.
Without having read the 'i got cheat skill in another world novel', it's difficult to name the main characters precisely. But generally, we can expect a main character who is the recipient of the cheat skill. This character is likely to be someone who is initially out of place in the other world but gradually adapts. There may be a female lead who could be a love interest or a powerful mage who serves as a guide. Antagonists might include a dark lord or a group of bandits who cause trouble for the main character. The character dynamics would be shaped by the main character's use of the cheat skill to overcome obstacles and achieve their goals in the other world.
I'm not sure specifically as I haven't read the novel in detail, but usually in such stories, there is a protagonist who gets the cheat skill. There might also be friends or allies they make in the other world, and perhaps antagonists who oppose them because of their new - found power.
I'm not entirely sure who all the main characters are without reading it thoroughly, but the protagonist who has the cheat skills is definitely a main character.
There are often side characters that play important roles too. There could be a wise old mentor figure who gives advice to the main characters. Maybe an old wizard or an experienced warrior. And then there are the friends of the main characters, who might be other adventurers or people from their village or town. They add more depth to the story and sometimes help the main characters through difficult situations.
Often, other powerful cultivators can be antagonists. They might be jealous of the lone cultivator's potential or resources. Another type could be the native powerful beings of the other world who see the cultivator as an intruder and a threat to their power or way of life.
The hero is a very typical character. He is often a young man with great potential in martial arts. He starts from a humble beginning and gradually becomes a powerful figure in the martial world through hard training and various adventures.
There are often mother figures. They can be either nurturing and loving, or complex characters with their own flaws and past traumas that influence their relationships with other women in the story. For instance, a mother who has sacrificed a lot for her family but now has to re - discover herself.