what happened to bud on my three sons
My Three Sons The series originally featured William Frawley as the boys' live-in maternal grandfather, William Michael Francis "Bub" O'Casey. William Demarest, playing Bub's brother, "Charley", replaced Frawley in 1965 due to Frawley's illness. In September 1965, eldest son Mike married, and his character was written out of the show. To keep the emphasis on "three sons", a new son named Ernie was adopted. In the program's final years, Steven Douglas remarried and adopted his new wife's young daughter Dorothy ("Dodie").