Theatre
From May to September 2011, Tointon played Eliza Doolittle in the West End production of Pygmalion at the Garrick Theatre, opposite Rupert Everett as Professor Higgins. In spring 2012, Tointon played the role of Evelyn in Alan Ayckbourn's revival of the 1974 play Absent Friends, alongside Reece Shearsmith at the Harold Pinter Theatre, directed by Jeremy Herrin, which received critical acclaim. Following this she played Giny in Ayckbourn's Relatively Speaking, with Felicity Kendal, Jonathan Coy, and Max Bennett at the Wyndham's Theatre in 2013.
In 2026, Tointon starred as Constance in Laura Wade's adaptation of The Constant Wife for a UK tour, prior to a planned West End residency.
Pygmalion, Garrick Theatre, London, 2011
Absent Friends, Harold Pinter Theatre, London, 2012
Relatively Speaking, Wyndhams Theatre, London, 2013
Gaslight, Touring Production – various cities in England, 2017
Twelfth Night, Royal Shakespeare Theatre, Stratford-upon-Avon, 2017–18
The Man in the White Suit, Theatre Royal Bath and Wyndham's Theatre, London, 2019
The Constant Wife, Touring Production – various cities in England, 2026