[5] Travelling to Canada to further his playing career while he worked at WinSport's Performance Training Centre, Dunn had the opportunity to try out for the Australian bobsleigh team.

[10][7] In 2020, Dunn made his acting debut as the lead actor in Greg Gould and Inaya Day's music video for the single "Love Like This".

[14] After his initial retirement from the Australian Bobsleigh team, Dunn began to focus on social causes that were important to him, notably those affecting the LGBTQI community, homophobia in sport, and HIV/AIDS.

[17] Following his return to Sydney, Dunn continued with this work, being announced as an ambassador for GiveOUT Day, which aims to help LGBTIQ+ projects and community groups.

[24][25][26] In 2020, he appeared in the documentary film Steelers: The World's First Gay Rugby Club by Eammon Ashton-Atkinson, alongside Steve Brockman and Nic Evans.

[27][28] Dunn was found dead inside his Surry Hills apartment on 21 January 2023, with police not treating his death as suspicious.