Cathy Rosier was a model and actress, who was born in Martinique, French West Indies, and died in Marrakech, Morocco, from a ruptured aorta. Rosier was the daughter of the Martiniquais writer and painter Yva and her husband, politician and mathematics instructor Thélus Léro. She is perhaps best known for her role as the pianist Valerie in Jean-Pierre Melville＇s Le Samouraï.