Clark Gable III, the grandson of Hollywood legend Clark Gable, died in Dallas, Texas in February.
His body was found by a friend inside his Dallas home at about 8 a.m., Feb. 22, according to police.
Gable died as a result of the combined toxic effects of fentanyl, oxycodone and alprazolam, The Dallas County Medical Examiner said.
The 30-year-old was the latest host of the Dallas-based television show, "Cheaters," which features people suspected of infidelity. He is survived by his fiancée and their infant daughter.
News about his death was posted on the show's Facebook page Friday afternoon.
His sister, Kayley Gable, also posted on her Facebook page about her brother's death.
"I LOVE YOU CLARKIE. I'm so sorry we couldn't save you."
Gable's mother, Tracy Scheff, also posted about her son on Instagram.
He was Clark Gable's only grandson.
Gable's death was the latest in a national opioid crisis that the Centers for Disease Control says claimed 48,000 lives in 2017. The manufacturer of Oxycodone last month agreed to pay $270 million to settle one of thousands of lawsuits blaming it in the crisis.