Briana Cuoco

In "The Tangible Affection Proof", Briana Cuoco, the younger sister of Kaley, plays a former friend and no fiancee of Penny's former boyfriend. Penny is very jealous of Gretchen when she gets proposed to on Valentine's Day at the same restaurant where Prnny, Leeonard, Howard and Bernadette are having dinner. She is an actor, dancer, choreolgopher and has been a contestant on "The Voice"