[2] On his return to Australia, he attended Princes Hill Secondary College, in Carlton North and joined St Martins Youth Arts Centre in South Yarra.

[2] Day was spotted by an agent[2] at the age of 14 and was soon cast in his first role in the ABC television series c/o The Bartons.

At 17, he left his home in Carlton and relocated to Sydney for the role in the television series A Country Practice that was to be his first big break.

[3] He has since gone on to establish a reputation as one of Australia's leading film, television and theatre actors, appearing in numerous Australian television series and telemovies including Rake,[4] Tangle, Hell Has Harbour Views,[5] My Brother Jack and Paper Giants: The Birth of Cleo.

His international television credits include Shackleton with Kenneth Branagh, The Hound of the Baskervilles, The Commander, Spooks, Hotel Babylon, Secret Diary of a Call Girl and Bruce Beresford's And Starring Pancho Villa as Himself.