Donald Gibb -- best known for playing the lovable brute "Ogre" in the "Revenge of the Nerds" franchise -- has died ... TMZ has learned. Gibbs' son, Travis, tells TMZ ... Donald passed Tuesday evening due to health complications. He says he died at his home in Texas, where he was surrounded by family, including his kids, who loved him deeply. We're told his death was not sudden, as Donald had been battling ongoing health issues. Travis and his family tells us ... Donald loved the Lord and his family, friends and fans with all his heart, and they ask...