Sid Krofft (born July 30, 1929 as Cydus Yolas) and Marty Krofft (born April 9, 1937 as Moshopopoulos Yolas) are a Greek Canadian sibling team of television creators and puppeteers who were influential in children's television and variety show programs and the founders of their production company, Sid & Marty Krofft Pictures in the U.S., particularly throughout the 1970s and early 1980s. They are largely known for a unique brand of ambitious fantasy programs, often featuring large-headed puppets, high-concept plots, and extensive use of low-budget special effects. The team also dominated the arena of celebrity music/variety programs during the period.