May 27th, 2011 - Jeff Conaway, American actor died at 60. Jeffrey Charles William Michael "Jeff" Conaway (b. 1950) was an American actor best known for his roles in the movie Grease and 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. An autopsy revealed that the actor died of various causes including pneumonia and encephalopathy attributable to drug overdoses.