Sophie Rundle (born 21 April 1988) is an English actress best known for portraying Ada Shelby in the BBC One historical crime drama television series Peaky Blinders, as code-breaker Lucy in the ITV drama series The Bletchley Circle, and as Labia in the British/American television sitcom Episodes. She also plays Alice in Sky 1's 2017 drama Jamestown.
In 2011, Rundle graduated from the Royal Academy of Dramatic Art in acting. She also went to Bournemouth School for Girls.
Rundle first started her career in the British horror comedy film Small Town Folk in 2007 opposite Warwick Davis. Later in 2012, she starred in the ITV four-part television miniseries period drama, Titanic, created by producer Nigel Stafford-Clark and written by Julian Fellowes, which is based on the sinking of the RMS Titanic. Later that year, she guest-starred as Labia in the British/American television sitcom Episodes opposite Matt LeBlanc and Stephen Mangan, which aired on Showtime and BBC Two.