As a young child, Frankie and his sisters (Marie and Antonette) lived in the 1300 block of East 95th Street in Brooklyn, New York.
After high school graduation, Frankie attended Fork Union Military Academy (FUMA), in Fluvanna County, Virginia where he also acted in stage plays.
[4] The b-side of the former, a song called "Fake Out",[4] written by his brother Johnny Sardo (born 1941), became a regional hit in the Midwest, and he was invited to join the 1959 Winter Dance Party tour starring Buddy Holly, Ritchie Valens, The Big Bopper (J.P. Richardson), and Dion and the Belmonts with Sardo as the opening act (most of the tour's posters mistitled his song "Fake Out" as "Take Out").
[3] On September 7, 1960, Frankie Sardo appeared on American Bandstand, where he performed his single, "When The Bells Stop Ringing".
In 1982, after wrapping up his horror film Blood Song, Sardo returned to California and married his young love, Hedda Britt, in a civil ceremony at their home in Chatsworth.