From November 2010 to January 2011 she played the title role in the Royal Shakespeare Company's Matilda the Musical in Stratford-upon-Avon.

[5] She was the only original Matilda transferred to the West End cast, where she shared the role with three other girls at the Cambridge Theatre.

[5][6] After completing Matilda, she played a small role in Tom Hooper's film adaptation of Les Miserables.

From 2013 to 2015, Ingram portrayed Shireen Baratheon in the third through fifth seasons of HBO's fantasy TV series Game of Thrones.

From 2017 to 2019 Ingram portrayed series regular Rebecca "Becky" Sidebottom in the Daytime Emmy award-winning Netflix original Free Rein[10] and also reprised the role for two special film episodes.