First professional theater was in The Boy From Oz in Sydney. Was not originally cast but was on the reserve list. Someone did not accept the position and David was offered the role. He spent 2 years touring with the show.
Has been nominated for 3 Helpmann Awards for Best Actor in a Musical alongside Hugh Jackman and Geoffrey Rush for his roles in Miss Saigon, Legally Blonde and Wicked.
Was voted number 1 in Australia's Hottest Men of Musical Theatre on Buzzfeed in 2014.