She is best known as the first voice of Koko on the American version of the British animated TV series Chuggington, and on Broadway as Jane Banks in Mary Poppins.
[20] She has also been featured in theatrical productions regionally[21] including performing at the Walnut Street Theatre in Philadelphia Pa. Raised in Barnegat Township, New Jersey, Harrington is attending the University of Notre Dame, double-majoring in Film/Television/Theatre and Political Science.
[24] Harrington originated the American voice of the lead female character Koko in the animated series Chuggington, when it debuted in America on the Disney Channel on 18 January 2010.
[27] For Nickelodeon and Nick Jr., Harrington has recorded bumpers and musical intros for many of their shows [28] such as The Backyardigans, Go, Diego, Go!, Ni Hao, Kai-Lan, and the Fresh Beat Band.
Harrington played "April" opposite Jerry Springer and Greg Mullavey in the reading for Peter Welch's TV sitcom in development, The House Arrest Rooney's in New York City in 2016.
[29] In 2014, Harrington played "Kelly" in the premiere episode, "A Killer Routine", of Discovery ID Channel's Momsters: When Moms Go Bad, hosted by Roseanne Barr.
In 2011, Harrington was interviewed on ABC's Good Morning America, [35] and was also featured in some performance shots while she sang and danced[36] as Jane Banks in Mary Poppins on Broadway.
[38] Harrington began her career on the stage, and within a couple of years made her Broadway debut at the New Amsterdam Theatre on May 10, 2011 starring as Jane Banks in Disney's Mary Poppins.
In that show's contribution to the competition, kids played adult roles, and Harrington, wearing a gray-streaked wig and pearls, hilariously impersonated Martha in 'Who's Afraid of Virginia Woolf.'
The cast recorded a demo at the Avatar studios in NYC, and during the winter of 2016, performed a workshop production in New York City as part of Emerging Artist Theatre's New Work Series.
[56] In 2016, Harrington played "Julie" in Benji The Dove, a feature film released in 2017, starring Lynn Cohen (Hunger Games), and directed by Kevin Arbouet.