She has made occasional appearances alongside the rest of the Teen Ninjas, but was never given any crucial roles.
In Operation: M.A.U.R.I.C.E. (her only speaking role to date), she is shown inviting Maurice to the teen's pep rally and is described as "super cute" by Numbuh 4, much to Numbuh 5's anger as she had a crush on Maurice. She is later present in the aforementioned pep rally, where she anticipated the plan's success but the chicken pox laser is aimed at the school. Stacey gets the chicken pox and berates Cree after the latter's plan was secretly foiled by Maurice but an annoyed Cree tells her to be quiet.
- Stacey appears to be high up with the Teen Ninja's hierarchy, openly berating Cree and dating Chad Dickson.