Miriam Fischer, born Miriam Fischer Zonnenschein on January 26, 1964, in Rio de Janeiro, Brazil, is a highly accomplished Brazilian voice actress widely recognized for her extensive work in dubbing anime and live-action productions into Portuguese. Her career is marked by a versatile vocal range, bringing to life a diverse array of characters across numerous popular series and films.

Fischer's voice is familiar to Brazilian audiences for many significant anime roles. She is known for voicing Curious in the fifth season of My Hero Academia and Miroslava Honebami in Kakegurui. She has also taken on the role of the powerful magician Merlin in the long-running series The Seven Deadly Sins, including its sequel seasons and the film The Seven Deadly Sins the Movie: Prisoners of the Sky. In the Saint Seiya franchise, she has consistently voiced the character Pandora across multiple installments, including The Hades Chapter - Sanctuary, The Hades Chapter - Inferno, and The Lost Canvas. Her other prominent anime credits include Ursula in Little Witch Academia and its film The Enchanted Parade, Princesa (Himeko Shirogane) in Demashitaa! Powerpuff Girls Z, and roles in Halo Legends, where she voiced Mama and Spartan-141. She also voiced DeeDee in a new dub of the classic film Alakazam the Great and Pamela Isley / Poison Ivy in the animated film Batman Ninja.

Beyond anime, Fischer's career is defined by her frequent collaborations and her work as a dubbing director. She is the official Portuguese voice for numerous Hollywood actresses, most notably Angelina Jolie, Drew Barrymore, Meg Ryan, Nicole Kidman, and Uma Thurman in a vast array of their films. Her voice is also associated with characters in major franchises like Tess in the video game The Last of Us and Bellatrix Lestrange in the Harry Potter films. In addition to her on-screen roles, Fischer has contributed extensively behind the scenes as a dubbing director for several anime series, including Cyborg 009 The Cyborg Soldier and the film Cowboy Bebop: The Movie, showcasing her deep involvement in the localization industry.