[citation needed] He is a descendant of prominent Chinese Australian Mei Quong Tart, who ran a popular tea house in the Queen Victoria Building in Sydney, and was also an early Chinese ambassador to Australia.

[citation needed] Tart's list of television credits includes the role of Will Monk on headLand, a drama series airing on the Seven Network and Matt Horner on the Australian award-winning series All Saints.

Josh was also an original co-host on the kids TV show Sarvo with Jamie Croft on Foxtel's Nickelodeon.

[5] In August 2013, it was announced that Tart would play Scar in the 2013–16 Australian production of Disney's The Lion King (nicknamed the 'Antelope Tour'), premiering in Sydney at The Capitol Theatre in December 2013.

Sydney Morning Herald critic, Harriet Cunningham, called his performance "simply extraordinary" and "a revelation".