Born: April 10, 1969
Birthplace: Queens, New York
William Jayne (born April 10, 1969) is an American actor. He has been in many films and has sometimes been credited as Billy Jacoby. His siblings, Robert Jayne, Susan Jayne, Laura Jacoby, as well as his half-brother Scott Jacoby are also actors.Jayne was born in Flushing, New York City, on April 10, 1969. He is of Jewish descent. At the age of three, he was visiting his older half-brother Scott Jacoby on the set of That Certain Summer, for which Scott won an Emmy for Best Supporting Actor. The director needed someone to play Jacoby in flashbacks, and Jayne was selected and began his career.
Although Jayne's birth name was not Jacoby, when he started his career his mother thought it would be best if he used Jacoby, the last name of his already established half-brother. At the age of seventeen, however, Billy Jacoby changed his professional name to Billy Jayne to coincide with his birth name.
Jayne was one of a child actor from the mid to late 1980s, starring in numerous guest appearances on TV shows such as Trapper John, M.D., The Golden Girls, as Blanche's 14-year-old rebellious grandson David, The A-Team, 21 Jump Street. He is also known for the role as Buddy, the brother of Terri in Just One of the Guys from 1985.
Jayne is best known for his role in the teen show Parker Lewis Can't Lose, starring alongside actor Corin Nemec. The show ran from 1990 until 1993. After the show ended, he had smaller roles in shows such as Renegade, Murder One (1995), Walker, Texas Ranger (1996), Charmed (1999), Cold Case in 2009.