While studying at Toi Whakaari, Emmett starred in the feature film Home By Christmas, based on Gaylene Preston's family during WW2.

Emmett played real-life figures Sam Giancana in US series The Making of the Mob: Chicago in 2016 and Victor Lownes in American Playboy: The Hugh Hefner Story in 2017.

He went on to star in James Cameron's Avatar: The Way of Water, The Sounds, New Zealand and Canadian co-production, Together Forever Tea, Amazon Prime's American Playboy: The Hugh Hefner Story,.

[9] Emmett recently starred in NBC's new single-camera comedy series, Young Rock, based on the life of Dwayne Johnson.

He is a screen tutor[14] at leading drama school The Actors Program and directed their 2017 and 2018 graduation films, Ripple and 13 Suspects, the latter written by The Almighty Johnsons co-creator Rachel Lang.