Following Ron Coote's decision to stand down from representative football in 1972, Sullivan made his New South Wales début before being selected in two Tests against New Zealand.
In 2010 he was named at lock forward in Kurri Rugby League Club's team of the century.
[6] Between 1985 and 1991, Sullivan with the help of his stepfather, Bill Orchard, stole more than $3 million in 14 separate armed robberies of banks and armoured cars.
[7] These crimes took place in a variety of locations in South East Queensland such as Logan City, Brisbane, and the Gold Coast.
In 1991, when Sullivan and his stepfather were finally apprehended, they had pulled off 6 out of the top 10 heists in total amount stolen in Queensland history.