Jeff Conaway (born October 5, 1950, New York, New York, USA) is an American actor, known for his role as Kenickie in the 1978 motion picture musical Grease. He began acting on Broadway at the age of two. Conaway is also known for his role as Bobby Wheeler on the television series Taxi (1978-1982) and Sgt. Zach Allan (later Security Chief) on Babylon 5 (1994 - 1998). He made an appearance in the film Jawbreaker as the father of one of the teenage girls. From 1989-1990 he was cast on the Bold and the Beautiful on the role of Mick Savage. He has made guest appearances on shows ranging from Barnaby Jones to George and Leo.
Problems with drugs contributed to his divorce from Rona Newton-John, sister of Olivia Newton-John. He was on Celebrity Fit Club 3 for a few weeks until entering a rehab clinic.
