She played a supporting role as Ms. Ingram on the CBS comedy Young Sheldon (2017–2020) and has acted in This Is Us, Workaholics, A Black Lady Sketch Show, and others.

[4] She received her bachelor's degree in theater and communications from Temple University, and there met fellow student Quinta Brunson.

[1] Pinnock moved to Los Angeles in 2016 and was cast as an understudy for the Robert O'Hara play Barbecue, staged at Geffen Playhouse and directed by Colman Domingo.

[1] She has also appeared on the series Get Shorty, Workaholics, A Black Lady Sketch Show and done voice acting for the programs The Boss Baby: Back in Business, Where’s Waldo?, and ThunderCats Roar.

[9] Pinnock is a main cast member on the 2021 CBS comedy Ghosts, on which she plays Alberta, a 1920s era jazz singer.

She is married to British dialect coach Jack Wallace, whom she met while in her graduate program at Royal Birmingham Conservatoire.