17 of Your Favorite Reality TV Stars Who Died Tragically

6. Diem Brown

Diem Brown was a recurring contestant on MTV’s reality series The Challenge, she had also previously competed on Real World/Road Rules Challenge: Fresh Meat. Brown was diagnosed with ovarian cancer in 2005, but overcame the aggressive disease and entered remission for six years. The cancer came back in 2012, but she again fought it and went into remission the following year, even competing in another MTV Challenge season, Rivals II. Unfortunately, Brown was diagnosed with cancer for a third time in June 2014 and two months later, while filming her eighth and final Challenge competition, Battle of the Exes II Diem collapsed on set. She was immediately airlifted to a New York hospital, where doctors performed emergency surgery. Brown stated that her ovarian cancer had metastasized to her colon and stomach. She died only three months later, on November 14, 2014 at the age of 34.