Mari Hino is a Japanese voice actress and narrator from Nemuro, Hokkaido, born on May 22. She is affiliated with the talent agency Sigma Seven, having moved from its junior branch, Sigma Seven e, in November 2021. Her interest in acting began in high school, where she was a member of the drama club at Hokkaido Nemuro High School. After graduating, she moved to Tokyo to attend a voice acting training school and made her professional debut in 2010.

Hino has built a versatile career by voicing a wide range of characters, including lively children, cute girls, comedic roles, and even pets and monsters. Her debut role is often cited as the child version of Shun Matsuoka in the 2011 anime series You and Me. She has continued to take on significant roles in popular series. She is known for voicing Thoma in The Promised Neverland and its second season, Mao in the CG anime Hoshi no Shima no Nyanko, and Rimea in A Certain Magical Index III.

Her filmography also includes a wide array of supporting characters. She voices Okpa in Interspecies Reviewers, Shushu Suruga in Chained Soldier, Teramin in Yo-kai Gakuen Y: N to no Sōgū, and Ikkaku-kun in Hanabichan The Girl Who Popped Out of the Game World. Additional roles include Maya in Megaton-kyū Musashi, Chii-chan in Ago Nashi Gen to Ore Monogatari, Urara in Hakumei and Mikochi, and Nao Shinkawa in Shirobako.

Beyond anime, Hino's work extends to video games, drama CDs, dubbing for foreign films, radio, narration, and digital comics. She has also contributed to character songs for anime and game projects. In 2011, she started her own radio program, Hinonemari's Hidamari of Nemuro, on the local station FM Nemuro. She also co-hosts a YouTube radio show with fellow voice actress Kana Aoi. Her hobbies include watching clothes tumble in a dryer and karaoke, and she is skilled at playing the piano.