Penelope "Penny" Hofstadter[1], is the deuteragonist of the American CBS sitcom The Big Bang Theory, portrayed by actress Kaley Cuoco. She is the primary female character in the series. She lives in Apartment 4A with her husband Leonard Hofstadter across the hall from Sheldon Cooper and Amy Farrah Fowler who live in apartment 4B where Penny moved and used to live in "Pilot" and Leonard first met and smitten with her. Her full first name is possibly "Penelope" as implied by "The Barbarian Sublimation", as her username was "Queen Penelope." She was unknowingly married to her ex-boyfriend Zack Johnson for three years, so her name could include "Johnson." That marriage was finally annulled in "The Thanksgiving Decoupling".