[6] Miller's professional acting career began on Broadway, where she appeared as Amaryllis in a revival of The Music Man with Dick Van Dyke.

[7][2] In 1981, after her appearance on Broadway, she joined the cast of Gimme a Break!, playing the role of the tomboyish Samantha "Sam" Kanisky opposite Nell Carter.

degree from Fordham University School of Law, leaving graduation early to portray Peter Pan in a production at the Pennsylvania Youth Theater.

[8] In 1999, Miller resumed her on-camera acting career with recurring roles on the Nickelodeon series The Amanda Show and All That and on General Hospital.

Miller also provided the singing voice of Dorothy Gale in the National Public Radio adaptation of L. Frank Baum's The Wonderful Wizard of Oz, and the voices of the title characters on Cartoon Network's The Life and Times of Juniper Lee, Disney Junior's Henry Hugglemonster, and the PBS Kids Clifford's Puppy Days (prequel to Clifford the Big Red Dog).

[9] Miller appears in the recurring roles of Pookie, Wiki, and Tini on Disney Channel's Higglytown Heroes, Haruka of Daigunder, and the Nick Jr. series Wow!