Gaunt Gary

From Memory Alpha, the free Star Trek reference.

Gaunt Gary was a 20th century pool hustler from New York City. Gaunt Gary hustled the great Willie Mosconi in Ames Pool Hall in 1953. Tom Paris created a hologram of the famous player for the Chez Sandríne bistro holodeck program. He tried to hustle Harry Kim asking if he wanted to wager a fin. He also told him to watch out for Paris, that he would take his money without cracking a smile. Gary's chauvinistic manner offended B'Elanna Torres. He told her that a man should treat a lady like a tramp, and a tramp like a lady. She called him a pig. (VOY: "The Cloud")

When Neelix and Tuvok were having a pool match in the Chez Sandrine program, Gaunt Gary advised Neelix during his turns. One such move he recommended against "Vulcan Slim" was to perform a "safety". (VOY: "Jetrel")

He attended Kes' second birthday party but became bored and wanted to shoot a rack of pool. (VOY: "Twisted")

Gaunt Gary was played by Larry Hankin.