Miyuki Sawashiro is a highly esteemed Japanese voice actress and narrator with a career spanning over two decades. Born on June 2, 1985, in Tokyo, she began her professional career while still in middle school. Her entry into the industry came in 1999 when, at the age of 14, she participated in a public audition for the anime Di Gi Charat and won the Special Jury Prize, which led to her debut role as Petit Charat, also known as Puchiko. Early in her career, she was affiliated with Mausu Promotion. During her high school years, she participated in a homestay program in Pennsylvania, which helped her develop proficiency in English. In August 2015, she transitioned to her current agency, Aoni Production.

Sawashiro is widely recognized for her remarkable versatility, capable of portraying a vast spectrum of characters, from young boys and teenage girls to mature, enigmatic women. This range has made her one of the most in-demand and respected figures in the industry. Her ability to convey deep emotion and complexity has been showcased in numerous major franchises. For instance, she has taken on the iconic role of the sultry thief Fujiko Mine in the long-running Lupin III series. In fantasy and adventure genres, she is known for voicing Kurapika in Hunter x Hunter, Sinon in Sword Art Online, and Mordred in the Fate series. She also portrays the headless rider Celty Sturluson in Durarara!! and the enigmatic Suruga Kanbaru in the Monogatari Series. Her talent extends to villainous roles, such as the demon Daki in Demon Slayer: Kimetsu no Yaiba, and dual roles like the contrasting Momobami twins, Kirari and Ririka, in Kakegurui. In the video game world, her prominent roles include Raiden Shogun / Raiden Ei in Genshin Impact and Bayonetta in the Bayonetta series.

Her work encompasses a wide variety of other roles, demonstrating her continuous presence in the anime industry. These include Brunhilde in Record of Ragnarok, Kitarō in the 2018 GeGeGe no Kitarō reboot, Hanako Koyanagi in Wotakoi: Love is Hard for Otaku, Gammamon in Digimon Ghost Game, and Towa Akagi / Cure Scarlet in Go! Princess Precure. She has also voiced characters in series such as Aruru in Utawarerumono, Shion Karanomori in Psycho-Pass, and Katalina in Granblue Fantasy the Animation. Her collaborations extend to films like Lupin III: The First and the Persona 3 movie series. She has also taken over legacy roles, such as voicing Kyōko Honda in the Fruits Basket -prelude- film.

Sawashiro's contributions have been recognized with numerous industry accolades. She has won multiple Seiyu Awards, including Best Actress in a Supporting Role in 2009, Best Actress in a Leading Role in 2010, the Overseas Fan's Award in 2011, and another Best Actress in a Supporting Role in 2015. In 2013, she also received the NewType Animation Award for Best Female Voice Actress. Beyond voice acting, she has contributed to music, performing character songs and theme songs for various anime series, and has been a member of several seiyuu idol units related to her projects, such as the Angel Corps for Galaxy Angel and the Despair Girls for Sayonara Zetsubō Sensei. Her discography includes numerous albums and singles tied to her character roles.