Character: Leslie Winkle
We haven’t seen her much in recent seasons of “The Big Bang Theory,” but Caltech experimental physicist Leslie Winkle used to date Leonard. She also had a running gag calling Sheldon a “dummy” and “dumb a**.”
Played By: Sara Gilbert
Known for her role on “Roseanne,” Sara Gilbert reunited with her “Roseanne” co-star Johnny Galecki in her role as his girlfriend early in “The Big Bang Theory”‘s run. (The two dated in real life once upon a time.) She has also been a daytime host on “The Talk” since 2010.
