Isabel Gaudi is a Spanish actress whose professional work includes a significant number of voice acting roles for anime series dubbed into Spanish. Beyond her voice work, she is also an actress in theater and television, and a acting teacher at the Central de Cine school in Madrid.

Her voice acting portfolio is extensive and includes leading roles in major anime franchises. She is notably the Spanish dub voice of the protagonist Sakura Kinomoto in the various Cardcaptor Sakura series, including the original television series and the Clear Card arc. Another prominent role is that of Sayaka Igarashi in the Kakegurui franchise, lending her voice to the character in the main television series, its second season, and the prequel series Kakegurui Twin. In the popular educational series Cells at Work!, she voiced multiple characters, including Macrophage and Regulatory T Cell. Her other anime credits include roles in One Piece, Case Closed, and Neon Genesis Evangelion.

In addition to her voice acting in anime, Gaudi has worked on Spanish live-action television productions, with appearances in series such as Ana y los 7 and Ellas y el sexo débil. Her theater work includes performances in musicals like Maravilloso fue volver, a tribute to Lina Morgan.