'Heroes' Actor Greg Grunberg Explains Why He Suddenly Went Bald

Greg Grunberg is being transparent about his health. The 58-year-old actor explained to fans in a recent video that he reason he suddenly went bald is due to alopecia. “I, all of a sudden, got alopecia and I knew nothing about it. I’m still learning about it,” he said. The Heroes star said he believes [...]