Greg Blewett played for Australia between 1995 and 2000. He played 46 Tests for Australia and 32 One Day Internationals.

Greg was called up for his Test debut in the fourth Ashes Test in 1995 and he duly responded with an unbeaten innings of 102, thereby becoming the 16th Australian to score a ton on Test debut. Greg continued to be a fixture in the Australian side, batting at numerous spots in the line-up. He opened the batting, walked in at No 3 and even batted at No 6, where he scored his only Test double-hundred. His famous 214 came against South Africa at New Wanderers, during which he constructed a mammoth partnership with Steve Waugh.

After his international days, Greg continued to be a leading figure for South Australia and retired in 2006. In 2014, he was appointed the fielding coach of the Australian team. Post retirement, Greg became a member of the Fairfax Radio Network commentary team that broadcast selected Test, ODI, T20 and Big Bash Leagues fixtures on networks suce as 3AW Melbourne, 2UE Sydney, 4BC Brisbane and 6PR Perth. In 2018, Greg joined the Seven Network as a commentator for Test Cricket, BBL and Triple M Adelaide as a Co-Host of the Dead Set Legends show.