Harry Einstein (May 6, 1904 – November 23, 1958) was an American comedian and writer, usually known by the name Harry Einstein but variously credited as Harry Einstein, Parkyakarkus ("park your carcass")and Nick Parkyakarkus. He was famous as the character Parkyakarkus, a pseudo-Greek character comic on the Eddie Cantor and Al Jolson radio programs. He appeared in eleven films as Parkyakarkas from 1936 to 1945.