Jeffrey Charles William Michael "Jeff" Conaway (October 5, 1950 – May 27, 2011) was an American actor best known for his roles in the movie, Grease, and the two US television series, Taxi and Babylon 5. Conaway was also featured in the first and second season of the reality television series, Celebrity Rehab with Dr. Drew. In May 2011, after spending just over two weeks in the hospital, Conaway died at the age of 60 as a result of complications related to pneumonia and the degenerative brain condition known as encephalopathy. Jeff Conaway was born in the New York City borough of Manhattan. He was raised in the Astoria, Flushing, and Forest Hills neighborhoods in the New York City borough of Queens. His father, Charles, was an actor, producer and publisher. His mother, Helen, an actress who went by the stage name Mary Ann Brooks, taught music at New York City's Brook Conservatory. They divorced when he was 3, and Conaway and his two older sisters lived with his mother.