Dianna Elise Agron (born April 30, 1986) is an American actress, singer, dancer and director. She is also the creator and co-editor of the music, art and photography website You, Me, and Charlie. Other ventures include directing a music video, and producing, writing and directing an unreleased short film A Fuchsia Elephant. Agron made her television debut appearing as Jessica Grant in CSI: NY in 2006. From 2006 to 2007, Agron had recurring roles in Veronica Mars as Jenny Budosh, and Heroes as Debbie Marshall.

In 2009, Agron was cast in her most notable TV role to date as Quinn Fabray on the Fox musical comedy-drama series, Glee. In 2011, Agron co-starred in the films The Hunters and I Am Number Four. Later that year, a concert documentary film of Glee was released, titled Glee: The 3D Concert Movie. In 2013, Agron co-starred as Belle Blake, alongside Robert De Niro, Michelle Pfeiffer, and Tommy Lee Jones in the action crime-comedy film The Family.