In the Off-Off-Broadway show Subverted in 2014, Fishback performed 22 characters and was nominated for a 2015 Innovative Theater Award for Outstanding Solo Performance. She also appeared in a number of TV shows, including The Knick, The Affair, The Americans, Blue Bloods, and Royal Pains, in minor roles.
In 2015, Fishback scored a key recurring role as single mother Billie Rowan in the Yonkers housing drama Show Me a Hero. She was cast as a series regular in the 1970s Times Square drama The Deuce two years later.
Night Comes On, Fishback’s first film, was released in 2018.
She also played Kenya in another film, The Hate U Give, and Najja in HBO’s television series Random Acts of Flyness in the same year.
She portrayed Robin in the Netflix film Project Power in 2020.
In Judas and the Black Messiah, she played Deborah Johnson alongside Daniel Kaluuya.
