Bromilow studied acting at the Western Australian Academy of Performing Arts.
[1] Bromilow has appeared in a number of Australian television series, including Mcleod's Daughters, Packed to the Rafters, and Rake.
[citation needed] Bromilow gained greater recognition outside of Australia through her role as Aunt Elizabeth in the Hulu/Disney+ series The Great.
She unsuccessfully auditioned for a part in the 2008 Sydney Theatre Company production of the original play upon which the series is based.
All proceeds from the auction were donated to the Australian organisation, Mummy's Wish, helping families of women diagnosed with cancer.