David Cassidy was born at Flower and Fifth Avenue Hospital in New York, New York, the son of Irish American actor Jack Cassidy and actress Evelyn Ward. He has three half-brothers, Shaun Cassidy, Patrick Cassidy and Ryan Cassidy, who were born after his father married actress Shirley Jones.

In his early career Cassidy featured on Bonanza, Adam-12, and Ironside. In 1970, he took the part of Keith Partridge, son of Shirley Partridge, who was played by Cassidy's real stepmother and series' lead, Shirley Jones. When he was signed to play Keith on The Partridge Family, he was not to sing on the recordings. Series creator Bernard Slade and producers Paul Junger Witt and Robert "Bob" Claver Read more...

Cassidy's first wife was actress Kay Lenz, whom he married in 1977 and divorced in 1982. According to their friend, Sandie Clark, David and Kay were best friends before they married and it didn't work out. His second wife was South African sportswoman Meryl Tanz, whom he married in 1984. This marriage ended in 1985. On March 30, 1991, Cassidy married Sue Shifrin-Cassidy, by whom he has a son, Beau Read more...