Dianna Agron has appeared on television shows such as Shark, Close to Home, CSI: NY, Numb3rs, and a recurring role on Veronica Mars. She then appeared as Harper on a 13-episode series of short films called It's a Mall World, directed by Milo Ventimiglia, and airing on MTV, and then on the second season of Heroes as Debbie Marshall, the head cheerleader/captain of the cheer squad at Costa Verde High School. Dianna has also hosted a mini Music Festival for 826LA in Los Angeles called Chickens in Love.
Dianna Agron was among many young Hollywood stars selected to be in Wal-Mart's Ocean Pacific spring 2010 marketing campaign. The national campaign debuted in fashion, lifestyle and entertainment magazines such as Elle, Teen Vogue, Seventeen and Cosmopolitan, outdoor and online at the official Ocean Pacific website. In addition, the celebrities hosted an Ocean Pacific party in Los Angeles in late April and made personal appearances on behalf of the brand.
Dianna Agron's most notable role to date is as Quinn Fabray, a high school cheerleader, on the Fox series Glee. The show has received high ratings and critical acclaim, including a Screen Actors Guild cast award in 2009 and two Golden Globes for Best Television Series – Musical or Comedy.
In 2010, Dianna Agron directed the music video for "Body" by Thao with the Get Down Stay Down.
In 2010, Dianna Agron played the small role of Natalie, girlfriend to main character Ali's love interest Jack, in the movie Burlesque alongside Christina Aguilera, Cher, and Stanley Tucci.
Dianna Agron was chosen by People to be part of their Most Beautiful 2010. She also came 8th in the 2011 Afterellen.com "Hot 100" list.
Dianna Agron appeared alongside Alex Pettyfer and Timothy Olyphant in the 2011 science-fiction action thriller I Am Number Four, directed by D. J. Caruso.
2006 When a Stranger Calls
2007 Skid Marks
2009 Fuchsia Elephant
2009 Dinner with Raphael
2009 Celebrities Anonymous
2010 Bold Native
2010 The Romantics
2010 The Hunters
2011 I Am Number Four
2011 Glee: The Concert Movie