Shaun was born on September 27, 1958, and traveled with his parents when he was only six months old while they were doing shows. His parents were stage and screen actors Shirley Jones and Jack Cassidy who were both heavily involved in the business. When he was a pre-teen, he started a band called "Every Mothers Dream" and when his mother and half-brother, David Cassidy, were both starring in a musical TV sitcom called "The Partridge Family" (1970), he asked his mom to put him in... imdb
Shaun was born on September 27, 1958, and traveled with his parents when he was only six months old while they were doing shows. His parents were stage and screen actors Shirley Jones and Jack Cassidy who were both heavily involved in the business. When h www.imdb.com/name/nm0001027/