Olivia d'Abo is a British actress and singer, best known for her role as Karen Arnold on the television series The Wonder Years. Born on January 22, 1970, in London, she began her acting career in the 1980s and has appeared in various films and TV shows, showcasing her versatility as an actress. In addition to her acting, d'Abo has pursued a music career, releasing several singles and contributing to soundtracks. She has also lent her voice to animated characters, including roles in The Justice League and The Batman. Her work spans multiple genres, making her a recognizable figure in entertainment.