Mitsuo Yoshihara is a Japanese actor and voice actor from Tokyo, born on September 22, 1978. He is known for his work in both live-action film and television, as well as providing voices for animated projects.

In animation, Yoshihara is recognized for his voice role in the critically acclaimed 2018 film Mirai. In this feature directed by Mamoru Hosoda, he voiced the character Mysterious Man in the original Japanese version. The character is a humanization of the family dog who helps the young protagonist understand his feelings of jealousy.

Beyond his voice work in anime, Yoshihara has built a substantial career as a live-action actor. His film credits include roles in Hell Dogs (2022), BAD LANDS (2023), and the historical drama Burn the Sword (2021). On television, he has appeared in notable Japanese dramas such as the taiga series Dou Suru Ieyasu (2023), where he played Shibata Katsuie, as well as roles in Vivant (2023) and Gannibal (2022). His work in Mirai placed him among a distinguished cast that included Moka Kamishiraishi, Haru Kuroki, Gen Hoshino, and Masaharu Fukuyama.