Janusz Warnecki was born on July 2, 1895 in Warsaw, Poland, Russian Empire [now Warsaw, Mazowieckie, Poland] as Jan Kozlowski. He was an actor and director, known for Kazdemu wolno kochac (1933), Ksiezna Lowicka (1932) and Milionowy spadkobierca (1928). He died on February 4, 1970 in Warsaw, Mazowieckie, Poland.