Tomoya Nagase is primarily known as a Japanese singer, actor, and the frontman of the rock band TOKIO, rather than as a prolific voice actor. His work in anime voice acting is limited but includes a few notable roles.

Nagase made his debut in anime voice acting relatively late in his career, with his first and most prominent role being the lead character Nanashi in the acclaimed 2007 animated film Sword of the Stranger, which was produced by the animation studio Bones. This role marked a significant departure from his extensive live-action television and film work.

His other voice roles include the character Ryuji Takayama in the series Ring Saishusho, as well as Makoto Majima in both Ikebukuro West Gate Park and the special episode Ikebukuro West Gate Park Soup no Kai. While his filmography includes a large number of live-action credits, his voice acting roles remain relatively few compared to his broader career as an entertainer.

Because his body of voice acting work is so small, there are no significant recurring collaborations with specific animation studios or directors that can be established from available records. His achievement in this field rests primarily on his well-received performance in Sword of the Stranger, which stands as a notable entry in his career given his established fame as a live-action actor and J-pop star.