[2] In 2010, Dann played the role of Diana Divane in the new musical Lend Me a Tenor at the Theatre Royal, Plymouth.
[3] She received great acclaim for her performance, with Michael Billington writing "Sophie-Louise Dann seizes her moment and gives wonderfully over-the-top potted parodies of Tosca, Violetta and Carmen, while hugging the walls and clawing the furniture in the manner of an old-style soprano".
[5] In April 2013 She played Dot and Marie in Sunday in the Park with George by Stephen Sondheim at Théatre du Chatelet, Paris, broadcast by Mezzo TV In 2014, she played Barbara Castle in the world premiere production of Made in Dagenham.
[6] In 2015, she originated the role of Paula in Bend It Like Beckham the Musical at the Phoenix Theatre, London, replacing Ronni Ancona during the rehearsal process.
Sophie-Louise Dann was a featured performer in the show alongside Mark Read, Glen Facey and Jenna Innes and Ben Stock.