Shinnosuke Morikage is a Japanese actor, model, and voice actor born on December 13, 1997, in Kyoto Prefecture. He is affiliated with the talent agency Sony Music Artists.

Morikage began his entertainment career as a model before transitioning to screen acting. His acting debut came in 2019 with a role in the film "Meikai Kissa Jubakku". He gained wider recognition in 2021 when he landed his first lead role in the movie "Suki na hito to hitotsu ni naru hōhō," portraying a character named Atsumi Matsukawa. The same year, he appeared in the film "Otoko no yasashisa wa zenbu shitagokoro nan desutte". In 2023, he took on a role in the television drama "Shinigami Barber".

His entry into voice acting began with his selection for the role of Eishirō Nijō in the mixed-media idol project UniteUp!. He voices this character in the 2023 anime television series UniteUp! produced by CloverWorks. He is confirmed to reprise this role in the second season of the anime, titled UniteUp! -Uni:Birth-. His work on UniteUp! is noted as a significant achievement that brought him popularity as a voice actor.

Prior to his acting and voice acting career, Morikage studied at the Bunka Fashion College in Japan and worked in a vintage clothing store, which cultivated a strong personal interest in fashion and styling. This passion for fashion is a notable aspect of his public profile.