Which character was played by Dustin Diamond in the sitcom 'Saved by the Bell'?

Dustin Diamond played the character Screech in the sitcom "Saved by the Bell." Screech was known for his eccentric personality, comedic timing, and tendency to be socially awkward. Diamond's portrayal of Screech became one of the most iconic and beloved characters in the series, contributing to the show's success and his own popularity.