Dianna attended Burlingame Intermediate School and Burlingame High School, in San Francisco.
Dianna has one younger brother, Jason.
Her parents are Mary and Ronald S. Agron.
Dianna graduated from Burlingame High School in 2004
Dianna has a deviated septum as a result of accidentally being punched in the nose at a party during high school. She says it is the reason why her voice is nasally.
One of Dianna's least favorite things is getting her blood drawn. The few times she has had it done she has passed out.
At Dianna's callback audition for Glee the producers decided that they wanted her to come back with straight hair. She didn't have time to go home before the audition, so she ran and bought a straightener at the store and went and straightened her hair in the bathroom at Starbucks.
Dianna discovered that she was allergic to cats when Lea Michele adopted 2 strays while they were living together.
Dianna lived in Texas for a few years when she was younger.
Dianna, along with her Glee costars, was nominated for "Outstanding Performance by an Ensemble in a Comedy Series" at the 17th Annual Screen Actors Guild Awards.
She enjoys walking in cemeteries.
In 2009, Dianna wrote, directed, produced, and starred in her own short filmed titled, A Fuchsia Elephant.
Dianna won a 2009 Screen Actors Guild Awards for "Outstanding Performance by an Ensemble in a Comedy Series" with her co-stars for her role in Glee.
Dianna is Jewish.
Dianna loves to cook, be outdoors, and spend time with family and close friends.
She is 5'6" (1.66 m) tall.
Dianna: Just trying to keep it all grounded and keep it all normal.
Dianna: As long as you're getting to work and be a part of it—still having fun, learn to just not sweat it so much and keep doing the things you love.
Dianna: (on the relation with the media) You decide you don't want to talk about something and somebody writes a press article anyway, and you think, well I hope people don't think I said that or I hope people don't think I'm trying to use this to promote my movie. I would never do that type of thing.
Dianna: (on paparazzi) Sometimes there are paparazzi that take photos and you don't know they're there.
Dianna: (on being famous) On a day-to-day basis, it doesn't really affect me much because the places that I go in LA very rarely have paparazzi, and if there are fans, they're so nice and easygoing. The only thing it changes sometimes is there can be interviews where they will skew your words or there can be things that you hope people don't assume about you.
Dianna: (on her drive) I've always been ambitious and self-made and willing to go the extra mile.
Dianna: (on being a women in her industry) So many times you see it with a female director, there's sometimes resistance from the male crew.
Dianna: (on inequality in Hollywood) Women are not paid anywhere near the same [as men] at all, and it's only getting worse
Dianna: (on her father condition) My dad has been battling multiple sclerosis for a while, and it's hard to see the deterioration of your parents.
Dianna: (on the acting career and its high and lows) You have to embrace the highs and the lows – and the moments where people aren't hiring you.
Dianna: I think that as an artist, the more that you can do to diversify, and kind of challenge yourself, the more you grow.
Dianna: (on finding out, at the age of 15, that her father had multiple sclerosis) Quite a bit changed after that. At that age, you don't see mortality in your parents.
Dianna: (on her thoughts about the idea of her character, Quinn being with Brittany, for a lesbian storyline on Glee) The two blondes? I wouldn't be opposed! I'd like to kiss Heather Morris!
Dianna: Having a dance background, I became used to rejection at an early age. Dance is very competitive, especially for a sensitive person like me. But I realized it's better not to take it so seriously. If you beat yourself up, it's hard to keep going.
Dianna: What a world we live in. I want to be incredibly close to the heart of it all. To live honestly, truthfully and to be completely present is the ultimate enterprise. And right now, I couldn't possibly ask for anything more. I am a very lucky girl.
Dianna: (On working with Kristen Chenoweth) And I think with somebody like her, to be so talented, witty and charming in real life and behind the camera, and have so much respect from everybody on our set... a lot of them hadn't worked with her before, but she didn't have to demand respect, it was just [given to her] because she's such a kind and generous person and so easy to work with.
Dianna: (On Glee compared to other high school shows) I think that it shows that regardless of who you are and what group you belong to, that there are so many emotions behind each person in high school. Sometimes with teens, writers or directors, anybody, short-changes them and makes them be simple, simple individuals, you're either the jock or the popular kid or the nerd. They don't show those shades. Everybody has those shades to them. This show, it really expands upon vulnerability and excitement and anger all the experiences that you probably actually go through in high school.
Dianna: (On the stunts in Glee) I slightly hurt myself during the pilot, coming down from one of the stunts. It's better now. I didn't tear something in my knee, but I strained it. Knees are very sensitive, I've learned. It's crazy, because I've been dancing since I was three on my toes and all these things. And you should never say this, but I've never injured myself ever. I'd seen gnarly injuries with dance and all these things. You shouldn't say that, though, because every day is an opportunity to fall, hurt yourself, so that was my experience.
Dianna: I definitely wasn't cool in high school. I really wasn't. I did belong to many of the clubs and was in leadership on yearbook and did the musical theater route, so I had friends in all areas, but I certainly did not know what to wear, did not know how to do my hair, all those things.