Sasuke could be a great addition. He could be a rival to Naruto even at a young age, and Kakashi would have to deal with their constant bickering. His brooding nature would add an interesting dynamic to the story.
Iruka - sensei is another character that would fit well. He has a special bond with Naruto and could provide some additional support and wisdom. He could also interact with Kakashi in ways that show different aspects of Kakashi's personality, like his more laid - back side when he's not on a mission.
Iruka could be included. He was Naruto's first teacher and has his own connection to Kakashi. His presence can bring out the different teaching styles between him and Kakashi. Another good character is Jiraiya. His relationship with Naruto as his godfather and his connection to Kakashi through being comrades can add some interesting storylines.
Iruka - sensei. He was Naruto's first teacher and has a connection to Kakashi as well. He could provide some emotional support or some important backstory information that helps Naruto and Kakashi in their journey in the fanfic.
Sasuke could be a popular character. He might be involved in the story in a way that either helps or hinders the situation where Naruto hurts Kakashi. For example, if Sasuke tries to stop Naruto from doing something stupid that would hurt Kakashi.
Shikamaru is a smart choice. His intelligence can be used to solve problems that Kakashi, Naruto and the others face. And his lazy - but - actually - really - smart attitude can provide some comic relief. Also, including the Third Hokage can give the story more depth, as he is the leader of the village and has a lot of knowledge and influence over the kids' lives.
Sakura could also be present. She might be observing the training and learning some things herself, or she could be helping Kakashi in some way, like providing medical support during intense training exercises.
Naruto is often very well - written in these fanfictions. His determination and growth are usually highlighted. For example, in some stories, his loyalty to Kakashi is shown in a very touching way, like when he refuses to leave Kakashi's side even in the face of great danger.
Sakura could be a great addition. She's a strong kunoichi and her medical skills could come in handy in many situations. For example, if Naruto and Sara are on a dangerous mission, Sakura could be there to heal their wounds. Another good character is Kakashi. His wisdom and experience would be valuable, especially when they face tough decisions or difficult enemies.
There are many great writers. Some popular ones might be those who have been writing in the Naruto fanfiction community for a long time. They understand the characters' personalities well. For example, there's a writer named 'LeafFan99' who often writes stories focusing on character development, like how Sakura grows under Kakashi's tutelage.
Kakashi, the copy ninja with his Sharingan, and Naruto, the boy with the Nine - Tails inside him. In this fanfiction, their characteristics will be explored more deeply during the timeout situation. Kakashi's calmness will contrast with Naruto's restlessness, creating interesting interactions.
The main characters are obviously Kakashi and Naruto. Kakashi is the experienced and cool - headed ninja, while Naruto is the energetic and determined protagonist.