Darin was born Walden Robert Cassotto in
East Harlem in
Manhattan on May 14, 1936, to Vanina Juliette "Nina" Cassotto (November 30, 1917 – November 3, 1983). Because his mother was only 18 at the time of his birth, Darin was raised to believe his maternal grandmother was his mother and Nina was his older sister. and had been a
vaudeville singer before Darin's birth. His maternal grandfather, Saverio Antonio "Big Sam Curly" Cassotto (born January 26, 1882), was of Italian descent. He had been a
made man and "soldier" in the
Genovese Crime Family, as well as a close associate of
Frank Costello's. Sam Cassotto died from pneumonia in late 1935 while in prison, less than a year before Darin was born. In 1968, when Darin was 32 and considering entering politics, Nina told him the truth, devastating Darin. She refused to reveal the identity of his biological father and took that secret to her grave when she died in 1983. The father's identity remained unknown until 2020. In April 2020, Emilio "Milton" LePore (November 11, 1911 – January 5, 1965) was traced, through genealogical DNA, as being Darin's biological father. Emilio LePore was the son of Italian immigrants and the oldest of five children. He went by the name Milton, rather than his formal name, Emilio. LePore was the brother of the actor
Richard LePore (1927–1998). The LePore brothers shared the actor
Anthony Franciosa (1928–2006) as their first cousin. Franciosa and Sandra Dee co-starred in the 1966 movie
A Man Could Get Killed. Franciosa and Dee had no knowledge they were in-laws. Details about Milton LePore and Nina Cassotto's courtship are scarce. They met in the Spring or Summer of 1935. In August 1935, Miss Cassotto became pregnant with Darin. Soon after, Cassotto ended the relationship. Details of why and how she ended it are not known. What is known about LePore, is that by the end of the 1930s, he was institutionalized for schizophrenia. The 1940 Census listed LePore as an inmate of
Rockland State Hospital, where he remained until his death in 1965. Darin moved to
the Bronx early in his life (with a rented summer home in
Staten Island) and graduated from the prestigious
Bronx High School of Science. In later years, Darin attributed his arrogance to his experiences there, where Darin was surrounded by brighter students who teased him. Darin then enrolled at
Hunter College and soon gravitated to the drama department. After only two semesters, he dropped out to pursue an acting career. Darin was an ambitious young adult and aspired to be an actor, go on
Broadway, and become a recording artist. By the time he was a teenager, Darin could play several instruments including piano, drums, and guitar. He later added harmonica and
xylophone. Darin took his stage name,
Bobby Darin, when he began recording. According to another version, he adapted it from the first name of actor
Darren McGavin, TV's Mike Hammer. Darin said: "My legal name will remain Cassotto. Cassotto was my mother's name, and it will be my children's name." ==Music career==