She won a Canadian Screen Award for her performance as Gladys Witham in the series Bomb Girls (2012–2013).

She later studied drama at the University of Cape Town[1] and competed in the Miss South Africa 2008 pageant.

[3] She won a Canadian Screen Award for Best Lead Actress in a Television Film or Miniseries at the 3rd Canadian Screen Awards in 2015 for her performance in the series' follow-up television film Bomb Girls: Facing the Enemy.

[8] Balfour was based in Vancouver, British Columbia, where in addition to her acting she is co-owner of Nelson the Seagull, a coffeehouse and bake shop in the city's Gastown neighborhood.

"[10] On 24 October 2021, Balfour announced on Instagram that she and Abbi Jacobson had been romantically involved for a year.