Isaac Sidney Caesar (September 8, 1922 – February 12, 2014) was an American comic actor and writer. With a career spanning 60 years, he was best known for two pioneering 1950s live television series: Your Show of Shows (1950-1954), which was a 90 minute weekly show watched by 60 million people and its successor, Caesar's Hour (1954-1957), both of which influenced later generations of comedians. Your Show of Shows and its cast received seven Emmy nominations between the years 1953 and 1954 and tallied two wins. He also acted in movies; he played Coach Calhoun in Grease (1978) and its sequel Grease 2 (1982) and appeared in the films It's a Mad, Mad, Mad, Mad World (1963), Silent Movie (1976), History of the World, Part I (1981), Cannonball Run II (1984), and Vegas Vacation (1997).