Madoka Yonezawa is a Japanese voice actress and singer from Osaka Prefecture, born on August 30, 1982. She is affiliated with the talent agency 81 Produce and is also known by the nickname En-chan. Her career as a voice actor began in 2005 after she graduated from the Amusement Media Comprehensive Academy in Osaka.

Yonezawa's path to voice acting was influenced by a creative upbringing. She grew up in a family with a strong inclination towards the arts; her mother was a piano teacher and composer, which provided an early environment rich in music and performance. This background fostered her love for singing and acting, leading her to pursue a career where she could combine both skills.

Her first roles in the mid-2000s were minor characters in series such as Major and Shuffle!. Her first major recognition came in 2009 with the role of Ui Hirasawa, the gentle and caring younger sister of the main character in the immensely popular series K-On!. This role became one of her signature performances and brought her widespread attention for her warm and soothing vocal qualities. Following K-On!, she continued to secure prominent roles throughout the 2010s, showcasing her range as a voice actor. She portrayed the complex and dramatic Setsuna Ogiso in White Album 2, the stern class representative Izumi Akazawa in the horror mystery Another, and Mayura Sōda in RDG Red Data Girl. In 2014, she expanded her artistic career by debuting as a solo singer with the album "Saezuri no Yume, Irodori Tori no Sekai".

Yonezawa's filmography is extensive and diverse, covering a wide range of genres. She has voiced numerous characters in long-running franchises, including multiple roles in the Pretty Rhythm series, such as Serena Jōnouchi and Jae Eun. In the anime industry satire Shirobako, she voiced several characters, including the voice actress Sara Satou and the fictional anime character Christine Waldegård. She is also well-known to fans of the Fate franchise for her role as Olga Marie Animusphere in various animated adaptations and games like Fate/Grand Order: First Order and Fate/Grand Order: Moonlight/Lostroom. Her other notable anime roles include Ferri in Granblue Fantasy the Animation, An in Muteking the Dancing Hero, Yachiyo Hinata in Stella Women's Academy, High School Division Class C3, Lashara Aasu XXVIII in Tenchi Muyo! War on Geminar, and Kaho Harui in Gokujō!! Mecha Mote Iinchō.

Beyond anime, Yonezawa is also an active voice actor in video games. She has reprised several of her anime roles in games, such as Ferry in Granblue Fantasy and its spin-off Granblue Fantasy: Relink, and Setsuna Ogiso in the White Album 2 visual novel. She has also contributed her voice to mobile games like Arknights as Proviso and Dragalia Lost as Odetta.

In terms of her professional approach, Yonezawa is regarded as a versatile performer capable of handling characters ranging from gentle and kind-hearted to emotionally complex and strong-willed, often falling within the mezzo-soprano vocal range. Her notable recurring collaborations include work with the anime studio P.A. Works on series like Shirobako and RDG Red Data Girl. In her personal life, which she keeps relatively private, she has announced her marriage and the birth of two children.