During WWII, saved Jewish children from being killed and then sheltered those children in her apartment.
Had a star turn in Szíriusz (1942), one of six films to play in competition a the 1942 Venice Film Festival.
In addition to her acting, Katalin was a popular singer who recorded several jazz songs for Patria Ultravox and Durium-Patria. Magyar Rádió in 1944 because of her political leanings.