He left PEOPLE in 2015. Don Grady, who played the dimpled-chinned Robbie Douglas on the 1960-72 sitcom My Three Sons – and, at age 12, was a Mouseketeer on Walt Disney’s original The Mickey ...
My Three Sons. The American sitcom followed widower and aeronautical engineer Steven Douglas (Fred MacMurray) as he raises his three sons. The sons, Mike (Tim Considine), Robbie (Don Grady ...