Tobirama Senju (Brother)
Hashirama Senju (千手柱間, Senju Hashirama) was the founder and the first leader of Konohagakure.
At a certain point in time, Hashirama and his brother, Tobirama Senju, fought against Madara Uchiha. Years later, Hashirama and Madara came in to good terms and founded Konohagakure and became the First Hokage.
Hashirama was a tanned skin man, dark eyes and waist-length black hair typically styled in a centre-parted fringe that framed his face. His attire took the form of the standard shinobi dress of his era, consisting of dark red traditional armour — similar to that of samurai — worn over a simple black suit. This armour was constructed from numerous metal plates, formed into multiple protective guards along his body, in particular: chest, shoulders, thighs and forearms. This clothing was accompanied by his village's forehead protector.
His personality is unknown in the spin-off, however it is implied that since he is the founder and the first leader of Konohagakure he has great leadership skills in maintaining peace in his village during his time.
As the first leader of his village it is implied that he was strong during his time. He is considered to be powerful as he was strong enough to fight against Madara, the head of the Uchiha Clan.