Tessa Dahl is an English actress, model, and author. She is the daughter of the late British author Roald Dahl and American actress Patricia Neal. ARLENE Dahl is an American actress, businesswoman, and former beauty queen. She was one of the most popular actresses of the 1940s and 1950s. MATILDA Dahl is an American actress and singer. She is the daughter of ARLENE Dahl and the granddaughter of Roald Dahl. Arlenes Dahl is an American actress, best known for her role in the television series 'The Love Boat'.