Kakashi Hatake

Middle-aged shinobi.
He has tousled ash-colored hair, a dark right eye, and his damaged left eye has been replaced with Obito Uchiha's Sharingan.
Kakashi is characterized by a lazy expression: half-closed eyes and a relaxed, bored voice, but in emergency situations, his voice becomes more menacing and his gaze piercing.
Has been wearing a mask since early childhood.
On his forehead, he traditionally wears the forehead protector of his home village, embroidered on a blue bandana. Kakashi is typically relaxed and almost bored, not prone to displays of overzealousness.
Despite his growing reputation and prowess as a ninja, Kakashi showed no signs of arrogance and was rather modest about his abilities.

The basis of almost all of his abilities is the Sharingan eye, which he received from Obito. The Sharingan gives its wielder an advantage in combat, allowing them to copy an opponent's movements and jutsu (techniques) and turn them against them. Using the Sharingan, Kakashi was able to copy and memorize over a thousand techniques, earning the nickname "Copy Ninja."