Katrin Cartlidge, an eccentric individual actress who impressed audiences on both sides of the Atlantic in the Theatre de Complicite's Mnemonic, died on Sept. 7 at a London hospital. She was 41. AP reported that she died of septicemia resulting from pneumonia.

Tony-nominated director Simon McBurney directed and conceived Mnemonic, an exploration of memory. Among the interconnected stories were a media circus involving the discovery of a 5,000-year-old Ice Man on the Austrian-Italian border and the journey of a woman searching through Eastern Europe for the father she never knew. Ms. Cartlidge starred with McBurney, Tim McMullan, Kostas Philippoglou, Catherine Schaub Abkarian and Daniel Wahl.

The show began on March 22 at John Jay College Theater. Good reviews led to several extensions.

Born in London, Ms. Cartlidge acted at the Royal National Theatre. Following Mnemonic, she acted in Rebecca Gilman's Boy Gets Girls at the Royal Court.

Despite her extensive theatre work, Ms. Cartlidge is best known for her work in the films of Mike Leigh, including "Naked," her first major film credit, "Topsy Turvy" and "Career Girls." Other films included "Breaking the Waves," "From Hell" and "Claire Dolan."