Encouraged by his high school drama to apply for drama school, Macdonald chose to become a professional actor upon graduating.
He is best known for his role as Constable Tim Dewey in Underbelly: The Golden Mile and Fat Nerd in the Horror-Comedy American Burger In 2007, Macdonald was accepted to Sydney School and early in 2008 he permanently moved to Sydney. At the end of his studies at Sydney School, he was presented with a Diploma of Performance. In 2010, he moved to London, United Kingdom, where he currently resides.
He studied at Sydney School and graduated with a Diploma in Performance in 2008.
Macdonald has since acted in a wide variety of Australian television and movies, most notably his portrayal of Constable Tim Dewey in Underbelly: The Golden Mademoiselle (Miss) Whilst first auditioning for a featured extra, the casting agent was so impressed with his audition that they offered him the role of the Constable Tim Dewey instead.
He also appeared in an episode of Home and Away opposite Luke Jacobz and Esther Anderson. He appeared in Jimmy Barnes" music video from Before The Devil Knows You"re Dead.
A few months earlier, Macdonald took the role of Norman in The Unjudged, which was shown at the Melbourne International Film Festival in 2012.
In 2012, he portrayed "Fat Nerd" in the Swedish movie American Burger. Although American Burger received mixed reviews from critics, it"s technical aspects were praised, along with the audio and cinematography. Macdonald is due to reprise his role of Fat Nerd in the sequel American Burger 2 - Back To Kraketch due for filming in late 2015.
He is also working closely with American Burger directors Johan Bromander & Bonita Drake on their new film Hot Chardonnay Macdonald is an avid sports fan and life long supporter of Southampton F.C. and can be often seen at games.
He is also a life long supporter of the Philadelphia Eagles in the NFL.