Tall man with a dark, slick pompadour/regent hairstyle, thin eyes and exotic eyebrows.
He is constantly serious and dedicated to his club. Although he is the Vice Captain he pretty much becomes the and Substitute Captain, and picks up all of club captain Mamiya Kiichi's work, from going to meetings to beating up Mamiya's brother. While being obedient to his captain and club, he can also very similar to Mamiya in basically being a bully.
Tadokoro pretty much takes over his lead as the substitute captain in the Hyakubukai board meeting and watches over his team when Mamiya goes killing crazy.
As he headed over to fetch Seiji from Karate club to rejoin Kendo, he also had his members beat up Minoru and Hayama who were in his way. He cared little for Seiji’s physical state, so long as he still joined Kendo.
Despite his seemingly lack of care for others during fights, he watches over his club and has high respect for it, ensuring for example that his captain doesn’t go berserk during fights in killing others- even Minoru in his first fight against Mamiya Kiichi.