Hiroyuki Endō is a Japanese voice actor and stage performer born on October 1, 1983, in Fukushima City, Fukushima Prefecture, Japan. He is affiliated with the talent agency EARLY WING and was previously associated with JTB Entertainment. Endō originally aspired to become a manga artist, but after moving to Tokyo, he was influenced by a friend's passion for voice acting and decided to pursue that career path instead. He stands 177 cm tall and has blood type O.

Endō began his career in animation in the late 2000s, with his first television roles appearing in 2008. His early work includes the character Louie, also known as Rui, in both the 2009 television series Sora o Miageru Shōjo no Hitomi ni Utsuru Sekai and its theatrical adaptation. Over the years, he has built an extensive portfolio, taking on a wide range of supporting roles across numerous anime series. Notable credits include Popota Kabaya in Anyamaru Tantei Kiruminzoo, Slane in the short-form series Meshimase Lodoss-tō Senki Sorette Oishii no?, various characters in the Uta no Prince-sama franchise, D·D and additional roles in Gatchaman Crowds and Gatchaman Crowds insight, and multiple roles in Devil Survivor 2 The Animation. He also played the role of Shiokaze in the series Jinryoku Senkan!? Shiokaze Sawakaze. His filmography includes appearances in high-profile productions such as Summer Wars, Freezing, Bleach: Thousand-Year Blood War, Shangri-La Frontier, and The Case Study of Vanitas. In the video game realm, he has performed roles in titles such as Fragments Blue, Guilty Gear 2 Overture, Pop'n Music Lapistoria, Monster Strike: Oreca Battle, and Final Fantasy VII Rebirth.

Endō has demonstrated considerable vocal flexibility throughout his career, frequently playing multiple roles within the same anime series. Beyond anime, his work extends to stage performances, dubbing for foreign films and series, drama CDs, and web anime. He has also contributed to regional promotional anime projects, such as voicing historical figures in Masamune Datenicle.