Charles "Chuck" Foley (September 6, 1930 – July 1, 2013) is a game designer who was the co-inventor of the game Twister.
From his Obituary on the BBC News:
The game of Twister, co-invented by Charles Foley, has been responsible for a number of embarrassing social situations over the years. Foley had shown a genius for invention from an early age. He relinquished a job as a salesman to work for a toy company in Minneapolis in the early 1960s. Together with Neil Rabens he came up with the idea of a mat, with different colour circles, on which players would have to put their feet and their hands depending on the directions of a spinner. The craze took off after TV host Johnny Carson played it live on air with glamorous actress, Eva Gabor. The success of the game was based on the fact it could be played innocently by children, or less innocently by adults; indeed the company that made it was once accused of selling "sex in a box". Foley made very little money from Twister but, according to his family, that never dampened his enthusiasm.