He is known for his appearances in the television series Breakers, as Alex Markham (1998–1999), Packed to the Rafters, as Jake Barton (2009–2013),[1] and Home and Away as Justin Morgan (2016–present).

[2] He grew up on the Gold Coast, alongside his identical twin brother Nicholas and older half-sister Annie.

[7] In 2007, Stewart played Jim O'Connor in the Queensland Theatre Company's production of The Glass Menagerie.

[9][10] In 2010, Stewart received a Logie award nomination for Most Popular New Male Talent for his role as Jake Barton in Packed to the Rafters.

The show centres around a family that is forced to go into the federal witness protection program and relocates to another city when the father (Stewart) is arrested after a failed drug deal.