| First Name | Shaun |
| Middle Name | Paul |
| Last Name | Cassidy |
| Full Name at Birth | Shaun Paul Cassidy |
| Age | 53 |
| Date of Birth | September 27, 1958 |
| Birthplace | Los Angeles, California |
| Height | 5' 11" (180 cm) |
| Build | Average |
| Eye Color | Blue |
| Hair Color | Brown - Light |
| Star Sign | Libra |
| Ethnicity | White |
| Nationality | American |
| High School | Beverly Hills High School, California |
| Occupation | Writer, actor, producer |
| Occupation Category | Writer |
| Claim to Fame | The Hardy Boys |
| Music Genre | Pop/Rock, Classical Music Entry |
| Music Style | Contemporary Pop/Rock, Bubblegum, Teen Idols |
| Music Mood | Innocent, Carefree, Summery, Exuberant, Amiable/Good-Natured, Sweet, Playful, Fun, Cheerful, Happy, Joyous |
| Instrument | Vocals |
| Father | Jack Cassidy |
| Mother | Shirley Jones |
| Brother(s) | David Cassidy (half- brother)Patrick CassidyRyan Cassidy |
Shaun Paul Cassidy (born September 27, 1958) is an American actor, singer, writer, and producer. He is the eldest son of Academy Award winning actress Shirley Jones, and the second son (his older half-brother is David Cassidy) of Tony award-winning actor Jack Cassidy. He is known for acting in TV series The Hardy Boys/Nancy Drew Mysteries and Breaking Away, and his producing such series as American Gothic, Invasion and Ruby & The Rockits.
Selected Shaun Cassidy film and TV show credits: