Hiro Nakamura (中村広, Nakamura Hiro) is a former computer programmer for Yamagato Industries. Hiro succeeded his late father as CEO of the company, but lets his sister do the job for him as she has always wanted. Hiro is an evolved human who had the ability to bend space and time. Whilst on a mission to the past, Hiro's abilities were stolen by Arthur Petrelli, but he was rescued by his loyal friend Ando.

Matt Parkman Jr partially restored Hiro's ability, enabling him to stop time again, and accidentally time travel and teleport. He has experienced severe negative health effects from using his restored power; he is dying from a brain tumor. For a while, Hiro's brain was scrambled by Damien's memory manipulation and he believed he was various literature and movie heroes, but his mind has now been returned to normal thanks to Ando shocking him back to his senses. Hiro recently had a near-death experience in which he is held in trial for abusing his abilities for personal gain, and after being healed, had a meeting with an aged Charlie. After learning that she lived a full life, he realized that they could never be. He and Ando then helped out in the battle against Samuel by teleporting all of the carnies to an undisclosed area, de-powering Samuel.

Bored with the monotony and conformity of his job as a salaried employee, Hiro Nakamura turns to his love of science fiction and fantasy as an escape. A bit of a dreamer, Hiro loves the idea of possessing powers, but the reality of it all becomes more than what he expected. Initially a happy-go-lucky fellow with an innocent view of adventure, Hiro's experiences force him to become more serious and determined. Hiro possesses a very strong sense of purpose and a solid moral foundation, and the events of the series only strengthen them. Dying from a brain tumor, Hiro has decided to use his restored time travel power to fix past mistakes and make life better for others around him.