Shaun Cassidy

Shaun Cassidy (born September 27, 1958, Los Angeles, California, USA) is an American singer, actor and TV producer. Son of actor Jack Cassidy and actress Shirley Jones, brother, and half-brother of David Cassidy.
Inspired by the success of his brother David, he released several successful singles in the late 1970s. His first single, a cover version of The Crystals' "Da Do Ron Ron", hit #1 in the USA in 1977, and like David before him, he became a major teen idol. He achieved two further top ten singles with cover versions of Eric Carmen's "That's Rock 'N' Roll" and "Hey Deanie" both released in 1977. In 1978, Cassidy went on to star opposite Parker Stevenson in the popular "Hardy Boys" television series which ran for several seasons on ABC-TV. Cassidy made his Broadway debut in 1993 in a production of Blood Brothers.
Among his credits as a TV producer was the creation of the short-lived FOX action/adventure series Roar which starred the then unknown. Other writing and producing credits include Cold Case, The Agency, and the creation of American Gothic as well as the 2005 ABC series Invasion. He has two children by his first wife, model Ann Pennington, and one child by his second wife, actress Susan Diol. On August 28, 2004, he married his third wife, producer Tracey Turner with whom he has two children.