Halley was born and raised in Brooklyn, New York City,[2] and began career appearing in television series Justice for All with Judge Cristina Perez, Tosh.0, Family Time and The Mayor.
In 2017 she made her big screen debut appearing in the drama film True to the Game, and later reprised her role in its sequels in 2020 and 2021.
[11][12] On television, she had recurring role in the NBC drama This Is Us, and guest-starred in two episodes on ABC comedy series Abbott Elementary as Sheryl Lee Ralph's character's daughter.
In 2022 she guest-starred on Law & Order: Special Victims Unit and later had recurring roles on Good Trouble and All American: Homecoming.
Also in 2023, Halley starred opposite Garcelle Beauvais in the Lifetime television film Black Girl Missing playing title part.