Miharu Sawada is a Japanese female voice actor born on July 28, 1996, in Kanagawa Prefecture. She is affiliated with the agency Kekke Corporation. Her interest in voice acting began in elementary school after watching Neon Genesis Evangelion with her father and later admiring the career of Nana Mizuki. To pursue this goal, she became a graduate of the 20th term at the Watanabe Entertainment School. During her high school years, she gained early experience in the industry by serving as an assistant on the radio program Tomokazu and Miki's Radio Big Bang.

Sawada joined Kekke Corporation in 2015. Her first major role and anime debut came in 2016, when she was cast as Hikari Ogasawara in the television series High School Fleet and as Nancy in Mahoutsukai Precure! that same year. She considers her role as the energetic artillery officer Hikari Ogasawara in High School Fleet a significant career milestone and has reprised the role in an OVA and the 2020 theatrical film.

Her career continued to develop with a variety of supporting and main roles in anime and games. In 2017, she voiced Tsunemi Tōko in Armed Girl's Machiavellism. She has also appeared in series such as Aikatsu Stars! as Saya Akashi, Atom: The Beginning, BanG Dream! It's MyGO!!!!!, and BLEACH: Thousand-Year Blood War. Beyond anime, Sawada has an extensive portfolio in video games. She voices Mei in the 8 beat Story♪ multimedia project and its associated voice acting unit 8/pLanet!!, and has contributed to games like D.C.4 ~Da Capo 4~, Aozora Under Girls!, and Tenshu Hyakken -Shin-. She has also participated in stage performances, including the musical The Daughter of Evil in 2024.

Sawada has formed friendships with several colleagues in the industry, notably voice actors Nanami Yamashita and Honoka Inoue, with whom she often shares personal activities like visiting Disney parks. She is known for her competitive and energetic personality, and her hobbies include playing with her dog, and her special skills are kendo, which she practiced for eight years, and badminton.