Samuel Henry John Worthington (born 2 August 1976) is an English-Australian actor and writer. He portrayed Jake Sully in the 2009 film Avatar, Marcus Wright in Terminator Salvation, and Perseus in Clash of the Titans as well as its sequel Wrath of the Titans. He then transitioned to more dramatic roles, appearing in Everest (2015), Hacksaw Ridge (2016), The Shack, and Manhunt: Unabomber (both in 2017). He also played the main protagonist, Captain Alex Mason, in Call of Duty: Black Ops.
In 2004, Worthington received Australia's highest film award for his lead role in Somersault.