Angela Cartwright: Angela Cartwright. Actress: The Sound of Music. Born in England, Angela is the younger sister of actress Veronica Cartwright. As a child she was cast as the cute little stepdaughter, Linda Williams, on The Danny Thomas Show (1953). She was on the show from 1957 to 1964. After that, she was cast as Brigitta in the popular Julie Andrews movie The Sound of Music (1965). Soon after, she returned to...
