Along with John Travolta's Danny Zuko, Conaway's Kenickie was a supercool hunk in a souped-up hot rod, and we'll always remember him for this iconic role in the movie version of the hit musical.
The handsome young actor looks pretty happy in the peak days of his career.
In one of the funniest TV shows of all time, Conaway teamed with a hugely talented cast in a series set in a taxi company.
For five years in the early 1980s, the actor was married to Rona Newton-John, the older sister of his Grease costar Olivia Newton-John, and stepdad to her son Emerson.
Cast as a creepy bad guy, Conaway joined a talented cast of Hollywood legends including Mickey Rooney and Red Buttons for the 1977 Disney film that mixed live action and animation.
In the 1990s, the actor spent several years on the series Babylon 5.
After getting clean in the 1980s, Conaway later fell off the wagon again and struggled with drugs and alcohol through the remainder of his life.
The actor was at times a reality-show wreck as he struggled with his addictions on the series.
The actor's addictions and back problems created a variety of health problems for him in his later years.
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