Sachika Misawa is a Japanese voice actress and singer born on January 13, 1993, in Yamanashi Prefecture. Her career began after she won the grand prize at the Kadokawa×Up-Front Style Idol Seiyū Audition in February 2009, making her debut later that year in the anime Shangri-La as the character Yuri Gamagori. Her breakthrough role came in 2012 when she was cast as Kuroyukihime in the series Accel World, a performance that she has described as life-changing and pivotal in her development as an actress. This role also marked the beginning of her music career, as she performed the series' second ending theme song, Unite, which was released as her debut single.

Throughout her career, Misawa has taken on a wide variety of roles across numerous anime series and films. In the long-running BanG Dream! multimedia franchise, she is the voice of Moca Aoba, appearing in multiple installments including the main television series, the film BanG Dream! FILM LIVE 2nd Stage, and the spin-off shorts BanG Dream! Girls Band Party! Pico, BanG Dream! Girls Band Party!☆PICO ~OHMORI~, and BanG Dream! Girls Band Party! Pico Fever!. She also voiced Sakura "Cosmos" Akino in the romantic comedy Oresuki: Are you the only one who loves me? and took on the role of Kravitz in the animated series Bakugan Battle Planet and its sequel Bakugan: Armored Alliance. Her other notable anime roles include Cafe in Yumeiro Pâtissière SP Professional, Yukari Kohinata in Futsū no Joshikōsei ga Locodol Yattemita, and Chitaru Hamatame in Riddle Story of Devil. She has also voiced Mikoto Ishino across multiple entries in the Tomica Hyper Rescue Drive Head Kidō Kyūkyū Keisatsu franchise, and performed as Arisa Meigo in the film A Certain Magical Index: The Miracle of Endymion.

Beyond her work in anime, Misawa has built a substantial career as a singer. After her debut with Unite, she released her first album, Polaris, in 2013, which featured music used in the film A Certain Magical Index: The Miracle of Endymion. Her subsequent singles have been used as theme songs for other popular series, such as Links for A Certain Scientific Railgun S and Faith for Argevollen. She has continued to release music, including the album I Am Me in 2020 under the Universal Music Japan label, for which she wrote lyrics and composed music herself. In 2022, she celebrated ten years since her CD debut with the release of a best album titled REMEDY.

Misawa has also been highly active in radio and other media. She has hosted numerous radio programs, often related to the anime she stars in, such as a weekly radio show for the BanG Dream! project and another for Oresuki. Her contributions have been recognized with appointments such as Yamanashi Prefecture Ambassador in 2017 and an award for her radio work on the Accel World program at the Aniraji Awards in 2020. Her sample voice was also used for the voice synthesis software CeVIO AI Futaba Minato, released in December 2022. Throughout her career, she has been affiliated with several talent agencies, including Style Cube, Space Craft Entertainment, and Stardust Promotion, and has worked as a freelancer since 2023.