Daigorou
Daigorou shows up in episode 188, where he gives a class presentation about how he met and became friends with Madao (Hasegawa). The whole thing is pretty memorable—mostly because of how earnest he is about their unlikely friendship.
He's basically a parody of Daigoro, the baby from Lone Wolf and Cub, the classic manga series. If you've seen that character, you'll immediately notice the visual similarity. Funny enough, they share the same first name too, which makes the reference even more on-the-nose. It's the kind of joke that works better if you're familiar with the source material, but it lands either way.
Content compiled by AnimeList.moe from publicly available sources.
