The Big Bang Theory's , Kaley Cuoco has recently admitted to secretly dating co-star Johnny Galecki for two years before ending their relationship last December. Which character from the hit show is your favorite?

Jim Parsons as Sheldon Cooper Johnny Galecki as Leonard Hofstadter Kaley Cuoco as Penny Simon Helberg as Howard Wolowitz Kunal Nayyar as Raj Koothrappali