Heidenreich graduated from Waverley College in Sydney's east, in 1993 before going on to become a well-known actor.

Over the next few years, he had guest roles in several drama series, including Echo Point (1995) and Big Sky (1997).

Heidenreich had a leading role in Water Rats in 2000 and 2001 as Senior Constable Matthew Quinn.

[2][3] In 2015, he guest-starred in Home and Away, as inmate Trevor Gunson,[4] nemesis of fellow prisoner Darryl Braxton.

Heidenreich was arrested and served periodic detention for an incident involving a car crash and drug use, leaving his girlfriend in hospital in 1996.