Her first major role was as Marta von Trapp in the 1999 Australian revival of The Sound of Music.
In June 2002, Marley won the Young Entertainer of the Year category at the 13th Annual Ricky May Heart Awards for her performances in both The Sound of Music and Annie.
[1] She told Jane Albert of The Australian that she was prepared to dye her blonde hair bright red for the role.
[6] In June 2002, for her performances in both The Sound of Music and Annie, Marley won the Young Entertainer of the Year category at the 13th Annual Ricky May Heart Awards.
[7][8] She played the nine-year-old Guido in a Lasalle College production of Nine, and in 2010 she portrayed Olive Ostrovsky in The 25th Annual Putnam County Spelling Bee.