[1] As a child, Sebbens wanted to become a palaeontologist or an astronaut but at the age of thirteen she saw Indigenous actress (and future The Sapphires co-star) Deborah Mailman in the film Radiance (1998) and was inspired to pursue acting.
[1] Sebbens graduated from Darwin High School in 2001[4] and after two and a half years at Nhulunbuy,[5] at age 19, was chosen to participate in "SPARK", a theatre mentorship programme established by the Australia Council for the Arts.
Sebbens played the role of Kay McCrae, one of four Indigenous Australian singers "who travel from a mission in Victoria to Vietnam to sing for American troops".
[14] In 2012 Sebbens played Miri Smith and Currah in A Hoax with Griffin;[15][8] in 2014, Dawn in Lobby Hero at Tap Gallery;[16] and in 2015, Mae in Radiance at Belvoir.
[24] It was scheduled to be staged in Sydney, Adelaide and Canberra,[25] with a new epilogue that introduced a note of activism, with Crombie, Sebbens and assistant director Ian Michael calling for the audience to engage in "seven actions of healing".
Her co-panellists were playwright Wesley Enoch, actor/writer/director Nakkiah Lui and Rhoda Roberts, and guests included Taika Waititi, Miranda Tapsell, Adam Briggs, Meyne Wyatt,[28] Yolanda Bonnell and Kwame Kwei-Armah.