She originated the role of Delphi Diggory in the Canadian premiere production of Harry Potter and the Cursed Child, which played at the Ed Mirvish Theatre between May 2022 and July 2023.
Farb made her Stratford Festival debut in 2013, where she was a member of the ensemble in that season's production of Romeo and Juliet.
In 2015, she starred as Cordelia in Stratford's production of King Lear opposite Colm Feore, which was filmed by CBC and later had a limited theatrical release throughout Canada.
Farb and Britta Johnson chose He Is Coming by Otto Willem Albertus Roelofs, which was performed in April 2016.
[12] In 2019, Farb made her Broadway debut in Harry Potter and the Cursed Child, where she played Delphi Diggory.
[13] In 2022, Farb reprised her role of Delphi Diggory in the Canadian premiere production of Harry Potter and the Cursed Child.