简·克拉尔，Jan S. Kolár was born on May 11, 1896 in Prague, Bohemia, Austria-Hungary [now Czech Republic] as Jan Stanislav Kolár. He was an actor and writer, known for Zpev zlata (1921), Svatý Václav (1930) and Polykarpovo zimní dobrodruzství (1917). He was married to Mása Kolárová.