Ginger was a holographic character in the Bashir 62 holoprogram. She was a Las Vegas showgirl who had once played on the same bill as Liberace.
In "1962", Vic Fontaine had a table reserved at the Dunes Hotel for himself, Odo, Ginger, and Melissa, where they were going to see Shecky Greene perform. Fontaine also took Ginger to see Peter Lawford and Jimmy Durante perform at the Sands Hotel. (DS9: "His Way")
When Ginger first met Odo, she compared him to Victor Borge. (DS9: "His Way", "What You Leave Behind")