Corey Haim, 38, was found unresponsive in his Los Angeles apartment during the early hours of Wednesday morning.
Haim was pronounced dead at Providence Saint Joseph Medical Center in Burbank of an apparent overdose. An autopsy will determine the official cause of death.
Haim was a teen heartthrob in the early '80s for films "Lucas," "The Lost Boys," and "A License to Drive." He collaborated on many films with Corey Feldman, dubbing them "The Two Coreys." The pair starred in an A&E reality TV show named after them, but the show was canceled in 2008.
Haim reportedly struggled with drug addiction for several years and was told by Feldman two years ago during their reality show that he should get sober.
According to IMD, Haim had recently completed two films, "American Sunset" and "Terminal Hotel."