Toge Inumaki is important too. His special cursed speech ability makes him stand out. Also, the principal of the school, Masamichi Yaga, is likely to be important as he is in a position of authority and has an influence on Gojo and the other students. There could be other characters like the members of different clans that also play roles in the complex web of the story.
The best episode of Man vs. Wild depended on one's personal preferences and tastes. However, some wilderness survival TV series or movies usually highlighted the protagonist's survival skills and adventurous spirit in extreme environments. They also showed the survival wisdom of humans in the face of extreme weather, food, and resource scarcity.
For example, each episode of Man vs. Wild would show the protagonist how to find food, build shelters, and deal with danger and challenges in extreme environments. In addition, some movies would emphasize the protagonist's interaction and cooperation with others in the process of survival in the wild, as well as how they worked together to deal with various challenges.
Therefore, the best Man vs. Wild episodes depended on personal preferences and tastes. If you like adventure, survival, and challenges, then Man vs. Wild TV series or movies might be a good choice.
The first episode of Man vs. Wild Season 1 could be watched online for free on many websites. It was a reality show, starred by Bear Grylls, a survival expert who had served in the British Special Forces. In each episode, Bell would be parachuted into various harsh environments, such as rainforests, deserts, hills, and ice fields. He would only carry some simple tools, and the camera team would record his entire survival process. The audience could see him using all kinds of survival skills, including determining directions, finding water, obtaining food, and so on. If you want to watch the first episode of Man vs. Wild Season 1 online, you can try searching for it on the relevant variety websites or video libraries.