Ross Andrew Hannaford was an Australian musician, active in numerous local bands. He was often referred to by his nickname "Hanna". Widely regarded as one of the country's finest rock guitarists, he was best known for his long collaboration with singer-songwriter Ross Wilson, which began as teenagers, with The Pink Finks and forming the seminal early '70s Australian rock band Daddy Cool. Hannaford died of cancer after being diagnosed a year earlier.

Ross Andrew Wilson is an Australian singer-songwriter, musician and producer. He is the co-founder and frontman of the long-standing rock groups Daddy Cool and Mondo Rock, as well as a number of other former bands, in addition to performing solo. He has produced records for bands such as Skyhooks and Jo Jo Zep & the Falcons, as well as for those of his own bands. He appeared as a judge on celebrity singing TV series It Takes Two from 2005. Wilson was individually inducted into the Australian Recording Industry Association (ARIA) Hall of Fame in 1989 and again as a member of Daddy Cool in 2006. Ross currently resides in the Melbourne suburb of Port Melbourne.