Natalie Trundy (born August 5, 1940) is an American actress, and the widow of movie producer Arthur P. Jacobs. As an actress she starred in Mr. Hobbs Takes a Vacation (1962). She made a sizeable contribution to the Planet of the Apes movie series (produced by her husband) during the 1970s. She appeared as the telepathic mutant Albina in the first sequel, Beneath the Planet of the Apes, as Dr. Stephanie ("Stevie") Branton in Escape from the Planet of the Apes, and as the chimpanzee Lisa, the mate (later wife) of Caesar, in Conquest of the Planet of the Apes and Battle for the Planet of the Apes.