Kate Middleton’s cancer announcement in a new interview.The Princess of Wales, 42, delivered the shocking news on Friday that she was diagnosed with the disease and was undergoing preventive chemotherapy. The British actor — who played a young Prince (now King) Charles in Seasons 3 and 4 of the Netflix drama — got candid about his feelings regarding Middleton’s health.At the Sydney premiere of his upcoming tennis flick, “Challengers,” the 33-year-old told the outlet 9honey Celebrity: “I really missed all the Kate stuff that everyone was talking online about.”Since Middleton’s abdominal surgery in January, she has mostly stayed under the radar, with many conspiracies swirling over her whereabouts.