Guinan

QUICK BIO
This female member of the scattered yet long-lived El-Aurian "Listener" race became the civilian hostess of the U.S.S. Enterprise's Ten-Forward lounge at Picard's invitation in early 2365, dispensing her trade's time-honored craft of advice while remaining mute about her own background.

SOURCE:Star Trek - Next Generation
Played By: Whoopi Goldberg
Position: Civilian lounge hostess
Species/gender: El-Aurian female