Breanna Humes was born in Canberra and grew up in Bunbury and Toowoomba. She is from the Noongar, Gunditjmara, Wiraderjiri and Jawoyn peoples. Breanna completed Y12 at Toowoomba State High School as the Indigenous Co-Captain of the school. She spent 5 years in the Air Force Cadets and in 2017 walked the Kokoda Trail with the 2 Wing Cadets. Breanna is studying Environment Sciences at the University of Southern Queensland.

I Want to be a Superhero is her first book, which she wrote when she was 8 years old.