Is there such a thing as a GILF? Grandmotherly Kate O'Mara defined the term when she appeared on the UK prison drama Bad Girls as a high-class hooker. Even in a wheelchair, Kate was still handicapable of making our zipper break out of our pants. Not bad for a British beauty whose career goes back to TV appearances in 1957. Kate's a legend of stage and screen in England, but her biggest splash in America was a 1986 stint on Dynasty as Joan Collins's striking sister. The oft-married O'Mara is also famously plainspoken, and she famously got O'Muffish with an amazing sex scene in the drama Whose Child Am I? (1974). Though she's still stunning, check out more of her younger bustline in Hammer Horror classics like The Horror of Frankenstein (1970) and The Vampire Lovers (1970).