- Born in Brooklyn, New York, USA Mark is an actor, known for Sudden Impact (1983), Evergreen (1985) and Mike's Murder (1984). According to the Manhasset High School alumni Web-site, Mark retired from show business in 1991 to pursue a career in information technology working for Electronic Data Systems Corporation as a Technology Operations manager and for Hewlett Packard Enterprise as a Solution Architect from 1996-2016. In 2016, he retired from technology and relocated from Washington State to Las Vegas, Nevada.- IMDb mini biography by: Mark Keyloun
- According to the Manhasset High School alumni Web-site, he retired from show business in 1991 to pursue a career in information technology.
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