Ruby (Dixon Hill)
Ruby was a holographic character from chapter 13 of the holonovel The Big Good-Bye who was one of Dixon Hill's "girlfriends." 

When Jean-Luc Picard and Lily Sloane entered the holodeck on board the  to escape two Borg drones, Ruby approached Picard, who played Dixon Hill, dancing with Sloane, and passionately kissed him. She left after Picard asks her to leave, telling her that he'd meet up with her later. She advised Picard to "dump the broad." ()

de:Ruby (Der große Abschied)
Holograms
The Dixon Hill Series characters