Award. From February to April 2012, she appeared as Sylvia alongside Mark Gatiss, Tobias Menzies, and Nancy Carroll in The Recruiting Officer, the production at the Donmar Warehouse directed by newly appointed artistic director Josie Rourke. Film Stirling's first screen appearance was in the 1998 British comedy film Still Crazy. Other film appearances include Maybe Baby, Redemption Road (2001), Complicity (with her Tipping the Velvet co-star Keeley Hawes), Another Life (with Vanity Fair actress Natasha Little), The Triumph of Love (with Mira Sorvino), as Mary Jones in Salmon Fishing in the Yemen, and as Anna in Snow White and the Huntsman. Television Stirling's first break in television was in the 2000 NBC miniseries In the Beginning, which was adapted from Genesis. Stirling played the young Rebeccah, with her mother, Diana Rigg, as the older Rebeccah. Her next notable role was Nan Astley in the 2002 BBC drama series Tipping the Velvet. In 2003, she appeared as Caroline Crale in Agatha Christie's Poirot episode "Five Little Pigs". In 2011, Stirling starred in the BBC Four adaptation of D.H. Lawrence's Women in Love as Ursula Brangwen. She portrayed Millie in both series of the ITV mystery drama The Bletchley Circle in 2012 and 2014, and reprised the role in The Bletchley Circle: San Francisco (2018). Stirling appeared in a 2013 episode of Doctor Who titled "The Crimson Horror" alongside her mother. The episode had been specially written for Stirling and her mother by Mark Gatiss (marking the very first appearance of the two actresses together professionally) and was aired on 4 May 2013 as part of Series 7. In 2014, Stirling portrayed Kate Wilkinson in the Cold War spy thriller television series The Game, and appeared in the BBC Four comedy drama Detectorists as Becky, initially girlfriend, then wife, of Andy (played by Mackenzie Crook), also featuring alongside her mother, Diana Rigg, who played Becky's mother. Stirling appeared as a guest on the BBC1 cookery programme Saturday Kitchen Live which was broadcast on 1 March 2014. In 2015, Stirling played the part of Arabella Yount, the spendthrift wife of a banker, in the three-part BBCs series Capital based on John Lanchester's novel of the same name. In December 2016, Stirling appeared on University Challenge at Christmas as part of a team made up of notable alumni of the University of Edinburgh. In 2021, she starred in the ITV television drama series Hollington