Along with her sisters Megan Alatini and Monique Cassie, she formed a band called the Nubian Angels in her early teens.
She worked in a bank, helped out at her mother's hair braiding salon and gave birth to her first child, Rylon Ngarino Watt, on 16 September 2006.
Though she didn't appear on the show, she provided her singing talent for the character Miri (played by Alina Transom).
She also sang an impromptu performance of the Kelly Clarkson track "A Moment Like This" at a reunion of members of The Tribe cast, which was held on 13 September 2008.
with fellow New Zealand entertainers Drew Neemia, Catherine Campion, Anthony Utama, Cameron Douglas and Jodie Clarke.
January 2010 saw Cassie appear in Legend of the Seeker, in the season 2 episode "Resurrection" where she played a courtesan named Bella.
As of 2017 Cassie is now touring as the ring mistress of the Weber Bros Circus show Adrenaline throughout New Zealand.