Greta Ruiz is a Spanish voice actor known for her extensive work in anime dubbing, primarily for the Spanish and Valencian markets. She has built a substantial career voicing a wide array of characters across numerous popular anime series and films.

Ruiz's career spans many years and includes a significant number of major roles. She is particularly recognized for her work in long-running and globally popular franchises. In the Attack on Titan series, she has voiced multiple key characters, including Christa Lenz, Historia Reiss, and Petra Ral across various seasons and compilation films. She also took on the role of Annie Leonhardt in later seasons of the series. Another major franchise in her filmography is Fairy Tail, where she voiced several characters, including Charle, Evergreen, and Lisanna Strauss. In the Sword Art Online franchise, she is the voice of Leafa/Suguha Kirigaya, as well as Silica and Yui.

Her voice work extends to many other well-known titles. She voices Kanao Tsuyuri in Demon Slayer: Kimetsu no Yaiba and Asfi Al Andromeda in the Is It Wrong to Try to Pick Up Girls in a Dungeon? series. In the Godzilla anime film trilogy, she played the role of Yuko Tani. Her other notable roles include Kofuku in Noragami, Schwi in No Game, No Life Zero, and Megu Kataoka in Assassination Classroom. She has also contributed to the One Piece films, voicing Nefertari Vivi in One Piece: The Desert Princess and the Pirates and Ain in One Piece Film Z.

In addition to series, Ruiz has an extensive list of film credits. These include the Spanish dubs of critically acclaimed movies such as I want to eat your pancreas, Josee, The Tiger and the Fish, Her Blue Sky, Weathering With You, and Night is Short, Walk On Girl. Her work is not limited to Japanese animation, as she has also participated in dubs for live-action films like Tokyo Ghoul.

Throughout her career, Greta Ruiz has demonstrated a remarkable vocal range, frequently taking on multiple distinct roles within a single series or franchise. Her work is consistently associated with the Spanish dubbing community, where she has become a prominent and familiar voice for fans of anime in Spain.