Kaley Cuoco's Penny finally tied the knot with Johnny Galecki's Leonard in a stunning wedding dress during the Big Bang Theory's season premiere. Cuoco rocked a knee-length dress that featured intricate lace details and an illusion neckline, which she paired with a pink and white floral crown and white pointed-toe flats. Cuoco captioned a Polaroid of herself and Galecki in their wedding day attire that same night.