In 1974, Blanks married Gayle H. Godfrey, whom he met in karate class. Shortly after the marriage, he adopted Gayle's daughter, Shellie, who was born in 1973. Shellie Blanks Cimarosti, a martial artist, is prominently featured in many Tae Bo videos. Shellie has also produced her own video called "Tae Bo Postnatal Power", as well as hosted her father's new infomercial Tae Bo T3 (Total Transformation Training). Gayle and Blanks also have a son, Billy Blanks, Jr., who works as a dancer, singer and fitness instructor. Blanks Jr. produced several best-selling DVDs, including "Cardioke" and "Fat Burning Hip Hop Mix". He has also starred in a touring production of the musical "Fame", and has worked as a dancer in music videos with Madonna, Quincy Jones and Paula Abdul.