Toshiki Masuda (増田俊樹; Masuda Toshiki) was born in Kure, Hiroshima, Japan on March 8, 1990, and is a voice actor and singer currently associated with TOY’S FACTORY.

Masuda came from an average family, with a mother, father and a younger brother. He gained an interest in voice acting at a very young age, watching コードギアス (Code Geass), and 天元突破グレンラガン (Gurren Langann). As a result, he moved to Tokyo in 2008 and attended the Tokyo Announce Gakuin Performing Arts College, in the broadcasting department.

His very first role came in 2009, auditoning for and debuting in the musical adaptation of テニスの王子様 (Prince of Tennis), as the character Seiichi Yukimura (幸村 精市). One year later, Masuda decided to pursue voice acting and was transferred to the voice acting department of his then agency Space Craft.

In October of 2010, he had officially began activities as a voice actor, with his first activity being an assistant on a radio show. In one year, he gained his first official role as a recurring character in the 遊☆戯☆王 (Yu-Gi-Oh) franchise as Ryouga Kamishiro (神代凌牙) in the ZEXAL arc. During this time, Masuda began hosting another radio show with fellow voice actor Hosoya Yoshimasa (細谷佳正), which ran for two years from 2011 to 2013; in between then, in 2012, the pair also debuted as a singing duo under the name MaxBoys.

From 2013 to 2017, Masuda would voice act as main characters in major animated productions, such as ハイキュー!! (Haikyuu!!).

In August of 2018, he left Space Craft to become a freelancer until joining the record label TOY’S FACTORY in 2018; he would later debut as a singer under the label with the EP This One in 2019.