Katarzyna Wolejnio (born May 19, 1973, in Warsaw, Poland) is a Polish-American actress, also credited as Kasia Wolejnio and Katarzyna Wolenjino, who studied English at Oxford, earned a degree in business administration from Poland's first private university, and later completed studies at the Sorbonne University in Paris, where she also worked as a flight attendant. She began her acting career in 2004 and is based in Los Angeles. Her most notable film credits include Valeria in Conan the Barbarian (2011, with Jason Momoa and Rose McGowan), Maria in The Mechanic (2011, with Jason Statham), Romy in The Iceman (2012, with Michael Shannon), Jennifer in The Paperboy (2012, with John Cusack and Nicole Kidman, scenes deleted), Major Pavlikova in Command Performance (2009, with Dolph Lundgren), Victor Rosen's Secretary in The Hit List (2011, with Cuba Gooding Jr.), a Dancer in Righteous Kill (2008, with Robert De Niro and Al Pacino), Saleswoman in Survivor (2015, with Pierce Brosnan and Milla Jovovich), and Yulia Hammond in I Want to Thank the Academy (2024). On television she appeared in CSI: Miami (1 episode).