Jessica McNamee (born 16 June 1986) is an Australian actress. She rose to fame in Australia playing roles in the Seven Network television programs Home and Away and Packed to the Rafters. From 2014 to 2015, she starred as patrol officer Theresa Kelly in the USA Network series Sirens. Her film roles include The Vow (2012) and Chips (2017). In 2017, she portrayed tennis player Margaret Court in Battle of the Sexes.