Angela Cartwright began her movie career at the age of 3. By the time she wwas 4, she was signed by Danny Thomas to play his daughter on the TV series 'Make Room For Daddy'. In 1965 Angela was cast in the movie version of "The Sound of Music". Soon after, she returned to television as "Penny Robinson" in Irwin Allen's "Lost In Space." In the years that followed Angela guest starred in numerous television shows and commercials. She recreated her role as "Linda" in a revival of "The Danny Thomas Show" called "Make Room for Granddaddy" and worked for Irwin Allen again in the movie "Beyond the Poseidon Adventure". She returned to the big screen in 1998 for "Lost In Space - The Movie" and still acts occasionally. She has also to her credit a nationally acclaimed book "My Book: A Child's First Journal" and has completed writing a fantasy novel with Bill Mumy.