Pleased to meet you 9 taxi Heartthrob status seems to run in the Cassidy family. In the '70s, 'The Partridge Family' star David Cassidy, 59, was every teenager girl's fantasy. And now his daughter is becoming her own bona fide sex symbol as well. As Elle, the sexy vixen publicist on 'Melrose Place,' Katie is pushing boundaries and steering clear of dad's squeaky clean image.