Minato Namikaze, he's the father of the protagonist, Naruto.
Minato's signature technique, the Flying Thunder God jutsu, is an incredibly diverse space-time ninjutsu that grants the user the ability of teleportation.
Knowledge of this technique gave Minato the speed to be considered the fastest ninja in the world in his prime, giving him the nickname: The Yellow Flash.
He is the Fourth Hokage, and his speed, power, and skills are truly unmatched, and only the most powerful shinobi could even stand a chance against him in a one-on-one battle.
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