Shaun Cassidy on AllMovie

Like his older half-brother, David Cassidy, big-eyed, boyish actor/singer Shaun Cassidy became one of the big teen idols of the 1970s. The son of actors Jack Cassidy and Shirley Jones, he became a favorite pin-up boy of preadolescent girls after the release of his first hit single "Morning Girl." In 1977, he landed the co-lead in the popular television mystery series The Hardy Boys Mysteries (1977). The show lasted a season, and Cassidy continued on with his recording career -- which ended with the '70s -- while making only the occasional television appearance until he played the lead in another short-lived television series Breaking Away (1980-1981). After that, his acting career became more sporadic and he all but disappeared, but for the infrequent stage appearance. In 1995, Cassidy reappeared on television as the producer of the critically acclaimed but seldom-watched horror series American Gothic. In 1997, he returned with another series, Roar, which chronicles the adventures of the rebel who fought to create a united Ireland in ancient times.