Harrison's latest play, The Visitors, premiered as a full production in January 2020 as part of the Sydney Festival. The Visitors was initially developed as part of the Melbourne Theatre Company Cybec Electric series and the Melbourne Indigenous Festival in February 2014, directed by Leah Purcell, after being work-shopped at the Yellamundie Festival in 2013. The Visitors re-imagines the arrival of the First Fleet from the perspective of seven senior law men meeting on the shores of the harbour.
Rainbow’s End premièred in 2005, and toured Melbourne, Sydney, regional Australia, and Japan in 2007. Harrison was awarded for Rainbow’s End the Drover Award and a Helpmann Awards nomination for Best Regional Touring Production. It is studied on the NSW HSC syllabus. Rainbow's End tells the simple, yet convoluted story of three generations of Aboriginal women; young Dolly, her mother the happy-go-lucky Gladys, and the wise and stern Nan Dear, living in their shanty perched on the flats of the Goulburn River in 1950s regional Victoria. The play was directed by Wesley Enoch.
''On a Park Bench''
On a Park Bench was created through workshops at Playbox and the Banff Playrites Colony. The play was a finalist in the Lake Macquarie Drama Prize.
''Blakvelvet''
Blakvelvet won the 2006 Theatrelab Indigenous Award. On a Park Bench was Finalist, Lake Macquarie Drama Prize.
Harrison's latest novel, Becoming Kirrali Lewis, won the State Library of Queensland 2014 black&write! Indigenous Writing Fellowship, and was Highly Commended in the Victorian Premier's Literary Awards 2016. Becoming Kirrali Lewis is a coming-of-age teen fiction novel about the search by Stolen Generations member Kirrali Lewis for her biological parents, which turns stereotypes on their heads. Becoming Kirrali Lewis was published by Magabala Books in 2015.
''Born, Still''
Short story, Born, Still, was published by the State Library of Queensland in Writing Black: New Indigenous Writing from Australia, launched in May 2014. Born, Still is a gentle reflection on the death of a daughter before birth. Born, Still was subsequently re-worked as a play, premiered at the Melbourne Writers Festival in 2018.
Other writing
Healing our communities, healing ourselves published in the Medical Journal of Australia, which won the Dr Ross Ingram Essay Prize. Indig-curious; Who can play Aboriginal roles? published by Currency House explores the issues raised by Aboriginal identity in theatre. Harrison also contributed a chapter to Many Voices, Reflections on experiences of Indigenous child separation, which was published by the National Library of Australia, Canberra. This work was also related to the theme of the stolen generations. Harrison is Festival Director of Blak & Bright - First Nations Literary Festival in Melbourne.