In Australia, he is best known for his performances as Chris in Miss Saigon, Fiyero in Wicked and Emmett in Legally Blonde having received Helpmann Award nominations for all three leading roles.

[1] Harris also starred as the Baker in Victorian Opera's production of Into the Woods[2] and, in America, as Jean Valjean in Les Misérables opposite Terrence Mann in 2015.

[9] Harris received his first nomination for Best Actor in a Musical at the Helpmann Awards as Chris, alongside other nominees including Hugh Jackman and the eventual winner iOTA.

In September 2013 Harris starred in the Australian professional premiere of a Stephen Schwartz's Children of Eden where he played the dual role of Noah and Adam.

[16] After relocating to the United States, Harris starred as Jean Valjean with the Connecticut Repertory Theatre, in their production of Les Misérables opposite Terrence Mann in 2015.