Sister Of Angela Cartwright. Veronica A. Cartwright\xa0(born 20 April 1949) is an English-born American actress who has worked mainly in American film and television in a career spanning six decades. As a child actress she appeared in supporting roles in\xa0The Children's Hour\xa0and\xa0The Birds. She is perhaps best known for her roles in the science fiction films\xa0Invasion of the Body Snatchers(1978) and\xa0Alien\xa0(1979), for which she won a\xa0Saturn Award for Best Supporting Actress.