The main character is obviously the dad who is too strong. And there are probably his family members like his wife and children as important characters as well.
The central character is the dad with his extraordinary strength. His family members play significant roles too. Maybe his son or daughter could be characters that have their own story arcs related to the dad's strength. For instance, they might be in awe of their father's power at first and then gradually grow to understand the responsibilities that come with such power.
The 'My Dad is Too Strong' light novel is mainly about a father who has extraordinary strength. He might face various challenges in a world filled with different powers or situations, and his family often gets involved in his adventures. He uses his strength to protect his family and deal with the problems around them.
The two main characters are 'rich dad' and 'poor dad'. Rich dad is the father of the author's friend and represents the mindset of the wealthy. Poor dad is the author's own father, who has a more traditional and less financially savvy approach to life and money.
Maybe there are friends of the dad or some antagonists who oppose the dad's heroic actions. There might also be neighbors or colleagues who play important roles in the story.
Since I don't know the exact novel, it's difficult to say. But likely the two main characters would be the good dad and the bad dad.
I'm not entirely sure as I haven't read it in full. But usually, the newbie who is too strong would be one of the main characters. There might also be some characters who are initially skeptical or in awe of the newbie's strength.
The two main characters are the rich dad and the poor dad. They represent different financial ideologies.
The main character in 'psycho dad graphic novel' is the 'psycho dad', but he doesn't exist in a vacuum. There may be a mother figure in the story who is either trying to protect the children from the dad's erratic behavior or is in denial about it. The children themselves, perhaps a rebellious teen and a younger, more innocent child, could also be main characters. The teen might be constantly clashing with the 'psycho dad' while the younger one is just confused. And there could be a local authority figure, like a police officer or a social worker, who gets involved as the situation escalates.
Since I haven't read it, I'm not sure about the main theme. It could potentially be about family, given the 'dad' in the title, and perhaps there are some elements of immortality mixed in with the role of a nanny, but this is just speculation.
The dad is a key main character. He might be the stable force in the family but with a complex backstory involving his best friend. The best friend himself would be an important character, with his own personality traits and motives. And then there is the protagonist, which could be the son or daughter. They are the ones who will drive the story forward as they explore the relationship between their dad and his best friend, and deal with their own feelings about it.
The main character is obviously the one who adopts the villainous dad. This character is often portrayed as kind - hearted and brave, willing to take on the challenge of having a villainous figure as a family member.