Sandra Dale Dennis (April 27, 1937 – March 2, 1992) was an American actress. She made her film debut in the drama Splendor in the Grass (1961). For her performance in the comedy-drama film Who's Afraid of Virginia Woolf? (1966), she received the Academy Award for Best Supporting Actress. Dennis was a renowned animal activist. She rescued stray cats from the bowels of Grand Central Terminal. At the time of her death in Westport, Connecticut, she lived with more than 20 cats, who were adopted out by longtime friends to new homes.