David Bruce Cassidy (April 12, 1950 – November 21, 2017) was an American actor and musician. He was best known for his role as Keith Partridge, the son of Shirley Partridge (played by his real-life stepmother, actress Shirley Jones), in the 1970s musical-sitcom The Partridge Family. This role catapulted Cassidy to teen idol status as a superstar pop singer of the 1970s. Wikipedia
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