Dustin Diamond’s Saved by the Bell cast mates & celebs mourn star after cancer death Updated: 3 Feb 2021, 15:34 Invalid Date, DUSTIN Diamond is being honored by stars following his shocking death as his former costars paid tribute to the late actor. 18 Dustin Diamond is dead at 44, as his former costars and other celebrities paid tribute to himCredit: AP:Associated Press Plenty of reactions poured in after TMZ revealed the unexpected death, as former costar Mario Lopez was quick to pay his respects. He tweeted: Dustin, you will be missed my man. The fragility of this life is something never to be taken for granted.