Jai Stephen Courtney (/dʒaɪ/; born 15 March 1986) is an Australian actor. He started his career with small roles in films and television series before being cast as Charlie in the action film Jack Reacher (2012). He went on to star in A Good Day to Die Hard (2013) and I, Frankenstein (2014) and The Exception (2016).
Courtney had a recurring role as Varro in the television series Spartacus: Blood and Sand (2010). He played Eric in the science fiction action film Divergent (2014), and in 2015, he reprised the role in the sequel, Insurgent. He portrayed Kyle Reese in Terminator Genisys and DC Comics villain Captain Boomerang in the 2016 film Suicide Squad and the 2021 sequel The Suicide Squad.
Courtney was born in on 15 March 1986 in Sydney, New South Wales and grew up in Cherrybrook, a suburb of Sydney. His father, Chris, worked for a state-owned electricity company, and his mother, Karen, was a teacher at Galston Public School, where Courtney and his older sister were students. He then attended Cherrybrook Technology High School and the Western Australian Academy of Performing Arts, graduating in 2008.