The most important character is of course the foolish king himself. There may also be his advisers, some of whom are wise but are not listened to by the king.
In the foolish king story, the main character is the king who is foolish. Besides him, there could be courtiers. Some of these courtiers might be sycophants who encourage the king's bad behavior, while others could be the few honest ones trying to steer the king in the right direction. Also, the common people in the kingdom are important as they are the ones affected by the king's actions.
There is surely the foolish king himself. There might also be his advisors, who try to guide him but are often ignored. And perhaps there are some common people in the kingdom who are affected by the king's foolishness.
The main characters are the foolish monkey and the king. Simple as that.
The main characters are obviously the king and the foolish monkey.
The main character is surely the foolish friend. But there could be a variety of other characters. There might be a group of friends who are constantly exasperated by the foolish friend's antics. There could be an older, more experienced character like a mentor or an elder in the community who tries to offer advice to the foolish friend but is often ignored. There may also be characters that are part of the situations that the foolish friend gets into. For instance, if the foolish friend has a habit of getting into financial trouble, there could be loan sharks or creditors in the story. And of course, there could be bystanders who observe the foolish friend's actions and have different reactions, some pitying, some laughing, and some trying to help.
As I don't know the particular 'the foolish woman story', it's hard to say exactly. But likely there is the foolish woman herself. There could also be characters who interact with her, like perhaps a wise old man or woman who tries to guide her, or there could be some characters who take advantage of her foolishness, such as a sly merchant or a dishonest acquaintance.
As I'm not aware of the 'the handsome foolish king story', it's difficult to determine the main characters precisely. However, thinking about typical stories of this kind, aside from the king, there could be court jesters who might either mock or befriend the king in his foolish state. Also, there could be rival kings or noblemen who take advantage of the handsome foolish king's naivete.
Obviously, the king is a very important character. He is the one who has the ring and his actions and decisions are central to the story. There might also be a wizard or a magician who either helps the king understand the power of the ring or tries to steal it from him.
The Fisher King himself is very important. He is the central figure around whom the story revolves. Then there are the knights, like Parsifal in some versions. Parsifal is often on a quest related to the Fisher King. And there are also damsels or female characters who sometimes play a role in guiding the knights or being related to the Fisher King's condition.
There are several important characters in the Gilgamesh the king story. As mentioned before, Gilgamesh, the king of Uruk, is central. He is strong, brave but also flawed. Enkidu, who was created by the gods to be a counterpart to Gilgamesh, is crucial. He has a more primitive and nature - connected side. Then there are the gods like Shamash, the sun god. Shamash helps Gilgamesh in his journey, providing light and guidance. And Ishtar, the goddess of love and war. Her relationship with Gilgamesh is complex and causes some of the challenges in the story.
The important characters include Simba, the main character who becomes king. Mufasa, his father, the noble king. Scar, the villain who wants the throne. Timon and Pumbaa, Simba's friends in the jungle. Nala, Simba's love interest. And Rafiki, the wise old baboon.