Matthew Nable (born 8 March 1972) is an Australian film and television actor, writer, sports commentator and former professional rugby league player. After playing in the Winfield Cup Premiership during the 1990s for the Manly-Warringah and South Sydney clubs, he wrote and starred in the rugby league-centred drama The Final Winter in 2007. Nable went on to act in films such as Killer Elite and Riddick. He appeared on The CW's Arrow and Legends of Tomorrow as Ra's al Ghul. As an author and as an actor, he is credited as Matt Nable, a name he generally used during his sports career.

Early life
Nable grew up on the Northern Beaches of Sydney and also, as a young boy, spent two years at Portsea, Victoria, when his father, Dave, a soldier, was stationed there, and another period of his childhood in Albury. His father had also worked as a trainer for the Australian national rugby league team, and his brother, Adam Nable, would become a professional player as well.