Long was born on 3 August 1968 in Boston, Massachusetts, but his parents shortly returned to Australia where he grew up on a farm near Benalla,Victoria. He went to Geelong Grammar School and traveled around the world before successfully auditioning at the National Institute of Dramatic Art where he graduated in 1994.
Long begun his acting career in 1992 but became well known for his role as Angus in the ABC hit series SeaChange (1998–2000) that earned him a nomination for an Australian Film Institute award. He also appeared in several Australian television series and films like the Nine Network police drama Young Lions (2002) , Two Hands (1999) and The Dish (2000).
In 2003 he played Brenden Abbott in the telemovie The Postcard Bandit and Daniel in the film The Book of Revelation (2006)
His acting career came to an end after collapsing on stage during a performance of the play Coranderrk: We Will Show the Country in July 2012.
He was diagnosed with terminal multiple myeloma and underwent treatment ,despite the risks which include severe side effects and the risk of neurotoxicity that damages the nervous system. However, in December 2018, he was given a prognosis of 3-12 months.
In a turn of events,he was pronounced cancer free during a medical trial at Washington Seattle in March 2019. But sadly he died,January 4th, of encephalitis at the age of 51.
He is survived by his wife Rebecca Fleming and his son Ariel Long,who’s from a previous relationship with Racheal Maza.