born Erika Marta Karkuszewska, is a Polish actress.
Kaar’s first screen role was in the 2014 BBC miniseries The Passing Bells, where she played a Polish nurse, the love interest of one of the two leads. She was a lead actress in the 2015 Polish television series Aż po sufit! Her film debut was in the Indian Bollywood movie Shivaay (2016) directed by Ajay Devgan. In 2017, she appeared in Starz’s TV series American Gods, playing Zorya Polunochnaya.
Kaar married Maciej Bielski who is a lawyer in Warsaw