Dustin “Screech” Diamond Battling Stage 4 Cancer

Sad news to share about a star of an iconic TV show of our youth. Dustin Diamond, who played Screech on the original "Saved By the Bell," has been diagnosed with stage 4 cancer, his rep confirmed.

Dustin, 44, has been hospitalized several days and is undergoing chemo. As of this post, no prognosis or cancer type has been made public.

Among the well-wishers is his former costar, Mario Lopez, who commented on Instagram, "I connected with Dustin earlier this evening and although the news of his diagnosis is heartbreaking, we remain positive that he'll overcome this," Mario posted. "Praying for him & his family and for a speedy recovery. God Bless."