Michael J. Fox returned to acting earlier because his new character in “Shrinking” allows him “to show up on set as” himself. Speaking to People in an interview published Wednesday, the Emmy-winning actor gushed about how “insanely fun” it has been to play Gerry, who also has Parkinson’s. Fox, who began experiencing symptoms in 1990 when he was just 29, first retired in 2000 after publicly sharing his diagnosis three years prior. After making several cameos on “Scrubs” and “The Good Wife,” he was forced to step away again in 2020. The “Back to the Future” actor, 65, described that a “new variable emerged,” which was losing his “ability…
