With two long-running sitcoms, multiple Emmy Awards and a top-grossing film series to his name, actor Michael J. Fox might have spent the rest of his life at the forefront of Hollywood’s A-list. However, the debilitating symptoms of Parkinson’s disease limited the actor’s screen career and, at the age of 39, he embarked on a new mission to help find a cure. The Canadian actor was one of the biggest stars of the 1980s, first embodying the Reagan-era culture clash with his role as an aspiring yuppie teen on the sitcom “Family Ties” (NBC, 1982-89). He parlayed his flawless comic timing and