In 2001, Karen supplied the voice of Princess Kida for the Cantonese dub of Walt Disney's "Atlantis: The Lost Empire". She acted in the 2004 Hollywood production "Around the World in 80 Days" with Jackie Chan (credited as Karen Joy Morris, her birth name) and in the Thai horror movie "The Coffin" in 2008. In 2013, she played the female lead role in Keanu Reeves' directorial debut "Man of Tai Chi". In 2014, she participated in the successful project "The Hypnotist".In 2016, the film A Chinese Odyssey Part Three, in which she starred, was released. On November 1, 2024, the film Cesium Fallout, in which she played the lead role as Cecilia, will premiere. In the film, she portrays the Acting Chief Executive of Hong Kong and the current Financial Secretary.
