Sid Caesar ( born September 8 , 1922 in Yonkers , New York ) is an American comedian and actor . Caesar stared in Your Show of Shows from 1950 until 1954 and in Grease as Coach Calhoun . Isaac Sidney `` Sid '' Caesar ( born September 8 , 1922 ) is an American comic actor and writer known as the leading man on the 1950s television series Your Show of Shows and Caesar 's Hour , and to younger generations as Coach Calhoun in Grease and Grease 2 .