Rob DiCaterino from Clifton, NJ, USA · CC BY 2.0

Dustin Diamond played Screech Powers across every iteration of the Saved by the Bell franchise for over a decade, the only cast member besides Dennis Haskins to appear in all three original series. His later career moved through stand-up and reality television, including Celebrity Fit Club, before he died of small-cell carcinoma in 2021, a month after his diagnosis.