Initially only supposed to appear in the pilot, he became best known for his work on TV's 77 Sunset Strip after he was signed as a regular cast member due to popular demand.
He was born with the name Edward Byrne Breitenberger, but he dropped his last name for his acting career.
He played the role of Vince Fontaine in the film Grease.
He married Asa Maynor in 1962 and they had one child together.
He recorded a hit song with Connie Stevens.