Fiona Shaw is an accomplished Irish actress and director, known for her versatile performances in theater, film, and television. She gained widespread recognition for her role as Petunia Dursley in the Harry Potter film series and has received critical acclaim for her work in various stage productions, including those by Samuel Beckett and Tennessee Williams. In addition to her film and theater work, Shaw has starred in popular television series such as Killing Eve, where she played the character Carolyn Martens. Her talent has earned her numerous awards, including BAFTA nominations, showcasing her significant impact on the performing arts.