Hayden Christensen (born April 19, 1981) is a Canadian actor. He is best known for his portrayal of Anakin Skywalker / Darth Vader in the Star Wars media franchise. He first appeared in the prequel trilogy films, Star Wars: Episode II – Attack of the Clones (2002) and Star Wars: Episode III – Revenge of the Sith (2005), and later reprised his role with a voice cameo in Star Wars: The Rise of Skywalker (2019), and as the main antagonist in the Disney+ series Obi-Wan Kenobi (2022). He will also reprise his role in the upcoming Disney+ series Ahsoka (2023).

Christensen began his career on Canadian television at the age of 13, then diversified into American television in the late 1990s. His early work includes Sofia Coppola's The Virgin Suicides (1999), Life as a House (2001), and Shattered Glass (2003), to which he earned critical acclaim for his performances as Sam in Life as a House and as Stephen Glass in Shattered Glass. Christensen's honours include the nominations for a Golden Globe Award and a Screen Actors Guild Award, as well as the Cannes Film Festival's Trophée Chopard. His other notable works in both blockbuster and independent films include Awake (2007), Jumper (2008), Takers (2010), and Little Italy (2018).