I might make a review about the characters of Eyeshield 21. From my own observation, each of the characters found in there have their own distinctive and outstanding personalities. I will also say my deepest thanks to Riichiro Inagaki and Yusuke Murata for creating the characters of Eyeshield 21.
Here are some of the behaviors of the characters in Eyeshield 21 (I only mentioned 10 characters):
1. Youichi Hiruma - In his appearance alone, you can really tell that he is a vampire/demon perhaps! Yet, all Eyeshield viewers definitely like this character (even me). Hiruma carries a lot of guns. I love his Devil's Handbook! He even was the one who created the team's chant: "YA-HA!"
2. Nurse Oka - In the later episodes of the show, you can see a very scary nurse! This nurse is indeed ugly! Yet, she hates being called by that word. This nurse does not even rely to medical technologies to cure people but uses witchcraft and black magic. (When she talks, a scary background music covers).
3. Sasuke Kanagushi - The team captain of Dokubari Scorpions. This guy can really predict your team's strategy. Although he has this kind of skill, I find it useless because Hiruma is more powerful than him. Later he became Hiruma's slave.
4. Rui Habashira - The team captain of Zokugaku. He has a very weird long tongue.
5. Ha-Ha Brothers - One of the linemen of Deimon, they like to say "Huh". Preferably getting stronger and louder.
6. Monta - The word MAX! is definitely from the vocabulary of Monta. He uses that everyday. Catch MAX, Effort MAX, and etc.
7. Kurita - The fattest in Deimon, he looks really like a chestnut. But who cares, Kurita is a little cute. He likes to say Funnuraba to exert more strength when he pushes an enemy lineman or player.
8. Tetsuma - Character from Seibu. When he is being commanded to do something, he'll definitely do it without stopping. He is good at routes.
9. Agon Kongo - Character from Shinryuuji. He envisions himself that he is a football genius (actually for me, he is not). He treats everyone other than himself as worthless trash.
10. Leonard Apollo - He is the coach of the Nasa Aliens. He alone is a racist! He doesn't want Panther-kun to play.
For more of Eyeshield 21's whackiest and funniest characters, I advise that you watch the show from Episode 1 up to the very last.
