[12][13] The actress's first major recurring role was in the Yonkers housing drama Show Me a Hero as single mother Billie Rowan.

[20] For her role on The Deuce, Fishback was listed by USA Today as one of five new faces that people should be watching on fall 2017 television.

[21] In December 2017, Fishback appeared as a younger version of Jay-Z’s mother, Gloria Carter, in his music video for "Smile.

[23] She also played the part of Kenya in the film The Hate U Give (2018), which is based on the popular young adult book.

[24] Fishback plays a street-smart teenager in Project Power, directed by Ariel Schulman and Henry Joost, opposite Jamie Foxx and Joseph Gordon-Levitt, which was released on August 14, 2020, by Netflix.