Samuel Henry John Worthington is an Australian actor. He is best known for playing Jake Sully in Avatar, Marcus Wright in Terminator Salvation, and Perseus in Clash of the Titans and its sequel Wrath of the Titans. He later took more dramatic roles, appearing in The Debt (2010), Everest (2015), Hacksaw Ridge (2016), The Shack (2017), Manhunt: Unabomber (2017), and Fractured (2019).