Who Played Gretl von Trapp in The Sound of Music Live!

Gretl von Trapp is a role in The Sound of Music Live!, a musical in 2013.

NBC UNIVERSAL partners with the multitalented Oscar- and Emmy-winning producing team of Craig Zadan and Neil Meron ("Smash," "Chicago") to ring in the holidays with an unprecedented world premiere television event, "The Sound of Music Live!" - a live telecast based on the stage version of the 1959 Rodgers and Hammerstein musical, starring Grammy Award winner Carrie Underwood as Maria and acclaimed British actor Stephen Moyer ("True Blood") as Captain von Trapp. From Universal Television, "The Sound of Music" is executive produced by Meron and Zadan. Beth McCarthy-Miller and Rob Ashford serve as directors.