Gilda

In The Big Bang Theory's 'Unaired Pilot,made for the 2006-2007 season, the original Leonard and Sheldon had a fellow geeky friend and scientist named Gilda who was a Leslie Winkle prototype. She was played by actress {[w|Iris Bahr}}. When she finds Katie in, she becomes because she has interest in Leonard. Katie assures her that she has no romantic interest in the two. Later Katie took them out to a where all three of the geeks show some very unconventual  skills.