[1] His first experience of acting was at the age of 11 or 12, as one of the sons in a production of Fiddler On The Roof staged as part of the Allora annual community concert.

He went on to perform in the annual concert in later years, including Monty Python skits.

In the second year, he won his first professional acting job, playing several roles in a production of Hamlet that toured Queensland for around six months.

This proved a breakthrough, and Denny started getting regular parts at the two Brisbane professional theatre companies, as well as being offered various roles in film and TV.

[1] In 2003, he and his future wife Rebecca decided to move to Melbourne, which has a larger film and television industry.