He played baseball with the Fitzroy Lions from an early age up until 17, whilst also becoming a talented golfer achieving a handicap of 4.

Heart followed this with the role of the locally well known Pizza Delivery Boy witness on the Seven Network Australia's Most Wanted and went on with recurring stunt actor roles on the Network Ten soap opera Neighbours, and the Australian Broadcasting Corporation hit series Mercury with Geoffrey Rush.

In 2009 he received public recognition for Channel 31 Australia C31, broadcasts of Outback Zack's Australian Animal Fire Victims Appeal.

[3] Heart wrote, produced, and hosted the one-hour television special which raised up to $500,000.00 for the non-profit animal rescue organisation Wildlife Victoria with broadcasts in Australia and the United States.

In 2010 Heart relocated from Australia to Hollywood, and became known by audiences as the regular host on Planet X Television appearing in 12 episodes with his "Outback Zack" persona, and starring in American vehicle commercials.