Rupert William Anthony Friend (born October 1981) is an English actor. He first gained recognition for his roles in The Libertine (2004) and Mrs Palfrey at the Claremont (2005), winning him awards for best newcomer. He portrayed George Wickham in Pride & Prejudice (2005), Lieutenant Kurt Kotler in The Boy in the Striped Pyjamas (2008), Albert, Prince Consort in The Young Victoria (2009), psychologist Oliver Baumer in Starred Up (2013), CIA operative Peter Quinn in the political thriller series Homeland (2012–2017), Vasily Stalin in The Death of Stalin (2017), Theo van Gogh in At Eternity's Gate (2018), and Ernest Donovan in the series Strange Angel (2018–2019).

In the early 2020s, Friend began collaborating with director Wes Anderson, starting with a cameo in The French Dispatch (2021), followed by roles in Asteroid City (2023) and the Netflix short films The Swan and The Rat Catcher. In 2022, he starred as disgraced British politician James Whitehouse in Anatomy of a Scandal and featured in the Disney+ series Obi-Wan Kenobi as the Grand Inquisitor.