Born in Broome, Western Australia, Walters was diagnosed with leukaemia at the age of six, but overcame the cancer after spending a year in a Perth hospital in 2003.
Australia Director Baz Luhrmann had been searching for a young aboriginal boy to fill the role of "Nullah" for over 12 months when one of the film's casting Directors saw Walters with his father at a Broome swimming pool in 2007; he also responded to an Australia-wide radio callout for auditions. He later received a letter from Luhrmann saying that he was "very, very interested" in him.
Artist Vincent Fantauzzo's portrait of Walters was a finalist for the 2009 Archibald Prize, ultimately winning the People's Choice Award.
