She is mainly known for her role as Liesl, the eldest Von Trapp daughter in The Sound of Music where she starred with Julie Andrews, Christopher Plummer, Nicholas Hammond, Heather Menzies, Duane Chase, Angela Cartwright, Debbie Turner, and Kym Karath.
Carr was born Charmian Farnon in Chicago, Illinois. She is the second child of vaudeville actress Rita Oehman and musician Brian Farnon, who named her Charmian after a character from Shakespeare's play Antony and Cleopatra.[1][2] She has two sisters