Margia Dean – 100

At 7, Margia Dean made her theatrical debut and went on to star in a number of well-known motion pictures, including the 1958 Western Ambush at Cimarron Pass, which featured Clint Eastwood in one of his early acting performances. Her most well-known performance, however, was in The Quatermass Xperiment (1955). Baron Frankenstein, Count Dracula, and The Mummy were among the iconic horror icons that Hammer Film Productions brought back into the cinema. Dean claims that even though she retired from acting, she still plays bridge and travels frequently. She is pleased to live in her ocean-view mansion in the Hollywood Hills.