D.S. Florence Cassell is a fictional character from the British television series Death in Paradise. She serves as a detective sergeant on the island of Saint Marie, where she works alongside a team of detectives to solve various murder cases. Her character is known for her intelligence, resourcefulness, and strong sense of justice. In the series, D.S. Cassell is portrayed by actress Josephine Jobert. She first appeared in the show's fourth season and quickly became a fan favorite due to her dynamic personality and ability to connect with both her colleagues and the local community. Her character adds depth to the series, showcasing the challenges and triumphs of police work in a tropical setting.