[1] Dee was born on the Gold Coast, Queensland, Australia to a white Australian mother and African American father.

[4] Dee was exposed to the performing arts early in life through her opera singer mother and her jazz musician father.

[5] She credits watching Sesame Street reruns in her Gold Coast apartment in her younger years as the inspiration for pursuing a career in acting.

Dee starred as Jules Koja in the Syfy horror anthology series Channel Zero: No-End House, which aired in 2017.

On 22 August 2016, it was announced that Dee was cast as Kat Edison in the Freeform comedy-drama series The Bold Type, which premiered on 20 June 2017.