Andrew Clement Serkis (born 20 April 1964) is an English actor and film director. He is best known for his performance capture roles comprising motion capture acting, animation and voice work for such computer-generated characters as Gollum in The Lord of the Rings film trilogy (2001–2003) and The Hobbit: An Unexpected Journey (2012), King Kong in the eponymous 2005 film, Caesar in the Planet of the Apes reboot series (2011–17), Captain Haddock / Sir Francis Haddock in Steven Spielberg's The Adventures of Tintin (2011), and Supreme Leader Snoke in the first two Star Wars sequel trilogy films (Star Wars: The Force Awakens (2015) and Star Wars: The Last Jedi (2017). Upcoming performance capture roles include Baloo in his self-directed film, Mowgli (2018).

Serkis' film work in motion capture has been critically acclaimed. He has received an Empire Award, and two Saturn Awards for his motion-capture acting. He earned a Golden Globe nomination for his portrayal of serial killer Ian Brady in the British television film Longford (2006) and was nominated for a BAFTA for his portrayal of new wave and punk rock musician Ian Dury in the biopic Sex & Drugs & Rock & Roll (2010).

In 2015, Serkis began playing Ulysses Klaue in the Marvel Cinematic Universe, beginning with Avengers: Age of Ultron, which was followed by Black Panther (2018). Serkis has his own production company and motion capture workshop, The Imaginarium Studios in London, which he used for Mowgli. He made his directorial debut with Imaginarium's 2017 film Breathe.