Dianna Agron is known for her role as Quinn Fabray, a high school cheerleader in Glee. The producers of the show initially thought she looked too innocent and needed to dress sexier. If only they saw her nude pics here. An avid PETA and LGBT supporter, Dianna Agron’s first nudes came from the Dianna Agron proved that she has a much edgier side when she posted a completely topless snap of herself to Twitter on Wednesday. New nude photo of Dianna Agron from Snapchat, 10/05/ Big eyes, big tits. Dianna Agron is American actress, known for “Glee: The 3D Concert Movie”.