Don Louis Agrati, more popularly known as Don Grady, was an American actor, composer, and musician. He is best remembered as one of Walt Disney’s Mickey Mouse Mouseketeers and for playing Robbie Douglas in the ABC/CBS series ‘My Three Sons,’ which ran for 12 years. He worked as a composer and songwriter in his later career and was an expert at playing the drums and the keyboard. Born to a sausage maker and a talent agent, Grady grew up alongside his sister Lani O'Grady, who was also a popular actress. He married twice in his lifetime. After having no children with his first wife, he married Virginia Lewsader, a woman he met at Disneyland. The couple had two children and stayed together for 27 years until Grady's death. In June 2012, the actor cum musician died of myeloma, a type of cancer, in Thousand Oaks, California, at the age of 68.