In 2013, he received a Tony Award for his featured role as Mr. Wormwood in Matilda the Musical.
[2][3] Ebert made his Broadway debut as the understudy for the role of Ken in John Logan's play Red in 2010, followed by the Broadway production of Kneehigh Theatre's Brief Encounter in 2010 as Stanley.
Ebert's performance in Amy Herzog's 4000 Miles at Lincoln Center Theater as the character "Leo", the grandson of Mary Louise Wilson's Vera, won him an Obie Award in 2012.
In the 2015 production of the Helen Edmundson stage adaptation of Thérèse Raquin at the Roundabout Theater at Studio 54 he played Camille opposite Keira Knightley, Judith Light, and Matt Ryan.
[6] In 2016, Ebert was cast in the pilot for the Amazon Video television program The Interestings.