Sayumi Watabe (渡部紗弓) is a Japanese voice actress affiliated with Sigma Seven. She passed the third Sigma Seven audition in 2009, and on November 1, 2021, she transferred from Sigma Seven e.
In 2018, she took her first leading role in a television anime, playing Akira Tachibana in After the Rain. She later appeared as Asagi Igawa in Action Taimanin, Eleonore Bianca in The Misfit of Demon King Academy, Freezing Astaroth in Combatants Will Be Dispatched!, and Sakura Banka in Build Divide. Her broader anime work also includes an announced role as Iroha in the second season of Magilumiere.
Watabe also played Aria Kisaki in 2.5 jigen no Ririsa. Aria Kisaki functions as a character-linked persona rather than a conventional solo project, and through that role Watabe sang "Release Sigh," the ED of 2.5 jigen no Ririsa.
