Troian is the daughter of Donald P. Bellasario and Deborah Pratt. She has one brother, Nicholas Dante Bellisario, and older half-brothers David and Michael Bellisario.
In 2011, Troian, together with her Pretty Little Liars co-stars Lucy Hale, Ashley Benson, and Shay Mitchell, won a Young Hollywood Awards in the category Cast To Watch.
Troian was been nominated three times for the Teen Choice Awards. In 2011 and 2012, she was nominated to the category Choice Summer TV Star: Female, for her role in Pretty Little Liars, having won it in 2012. IN 2013, she won in the category Choice TV Actress: Drama, again for her role in Pretty Little Liars.
Troian's parents are producers Donald P. Bellisario and Deborah Pratt.
Troian has one sibling, Nicholas Bellisario, and three half-siblings Michael Bellisario,David Bellisario and Julie B. Watson.
Her father, Donald P. Bellisario, wrote an episode of TV series Quantum Leap named after her daughter (episode named A Portrait for Troian - February 7, 1971). Her mother, Deborah Pratt, played the role of Troian in that episode.
Troian had an eating disorder and a self-harm addiction; both of which she has been able to get over.
Troian is 5' 7" (1.7 m) tall.
Troian is one of 9 siblings. She only has one "full" sibling and the rest are half and step siblings.
Troian doesn't eat any meat except for fish.
Troian studied French for 7 years.
Troian attended the University of Southern California's School of Theatre. While there she graduated with a bachelor of fine arts in acting.
Troian very first acting role was on the show Quantum Leap that her father created.
Troian's on-screen debut was in the movie Last Rites,which was written and directed by her father.
Troian: (on her struggles regarding appearances and the comparison with her Pretty Little Liars co-stars)Honestly, it's an ongoing struggle. Especially for a woman on a show that has the word 'pretty' in it! Sometimes I feel like I'm trying too hard, like I don't belong. I just look around at Lucy, Shay and Ashley and I'm just like, 'Why am I on this show?'
Troian: (on getting compliments on her beauty) Getting compliments is wonderful and everyone should feel beautiful in their own skin. But I get my hair and make up done professionally. For a job. That's not beauty. That's make up it's a curling iron and hairspray. What's beautiful is inside you. It's your creativity. It's your intelligence. Your empathy and your kindness to your fellow man
Troian: (her opinion on climate change) We are the polar bear - Not our grandchildren or their grandchildren. Climate change is happening now, to us.
Troian: (on her liking Paris) Merci à Paris- U r the craziest most beautiful home away from home. I will never forget you and I will run to come back. À bientôt mon amour
Troian: (on her character in Pretty Little Liar having an addiction) Portraying a character's addiction is a challenge. I'm grateful to the writers of #pll for helping take it on with respect and authenticity.
Troian: I think I am so far from perfect. In fact I don't know anyone who is, perfection is boring, flaws are what make human.
Troian: (on doing the 'Noir' episode Shadow Play of season 4 of Pretty Little Liars) There was a style about it, a deliberateness, & a feeling that we were making something beautiful and different together!
Troian: (on doing the hair and makeup for the 'Noir' episode Shadow Play of season 4 of Pretty Little Liars) Usually we have about 1.5 hrs of hair and make up to look "normal. so I was happy to do that same time to look period.
Troian: I have a lot to be happy about and a lot more I want to do.
Troian: (on having been challenged to achieve since childhood) My high school was a private school where you went to an Ivy League. That's just what was expected of you and nothing less. So I grew up never being okay with a 'B' because a 'B' was not good enough.
Troian: (on having grown-up with fame around her) I've always known people in the spotlight and people who just grew up in LA and had nothing to do with the industry. It's not a glamorous thing to me. It's just a different type of business. I've seen friends go down the path of drugs or letting the spotlight go to their heads. I've witnessed that. It's not a very good option if you want to have a long career like I do and do a lot of different things.
Troian: I'm not a glamorous girl. I don't know how to do my hair. I'm very bad with makeup.
Troian: As an actor I really want to be challenged, and I thought that this was a story that needed to be told. It spoke to me not just as an actor, but also as a person.
Troian: I'm partial to slouchier, more free clothing. My icon is Patti Smith, so the more rips, the more punk, the more comfortable I feel.
Troian: (on preparing for her role in Lauren) You know, my father was in the military and one of the first things I said was that I need somebody who is military trained, who can teach me how to walk and salute like a soldier and who will not placate me, or be like, "that was really good for an actor!" I was like 'No Bullshit! I need to know when I'm looking bad and when it's wrong and when I'm doing it right'.
Troian: That's really what changed for me: learning how to juggle and learning how to be easier on myself. I'm like Spencer at this point in my life: I get stressed out really easily, and the first thing I have to do is not let myself go down that road.
Troian: (on her name) I've never met any other Troians. I've only been told of them. I came really close. One of my best friends in elementary school went to a different school. Her math teacher heard about my name, and she was going to name her kid that. I remember this whole week where I was freaking out that there was going to be another Troian in the world.
Troian: I was definitely a tomboy. My mother liked to dress me differently, but it was her loss when I came home with mud in my hair every day. I've always been more comfortable with guys, I don't know why. But I have always had one best girl friend, and no one gets closer than her.
Troian: I was also drawn to the story because it made me aware of an issue that I really had no idea about. I really believe that when taking on a new role, you, as an actor are expanding yourself. You are learning more about another human being's experience in the world and with Lauren, my eyes were opened to a very different world, and also a very tragic one.
Troian: I absolutely looking forward to having my own family, but personally, I have a lot of things to work out before I get there. Right now I'm in this blessed period of having a family that I choose to run with in this kind of pack of friends.
Troian: Not only do I want to be an actress, I want to be one on my own and be good at it on my own.
Troian: (on nepotism and on wanting to get success on her own) I had the opportunities and I took them for the experience. I was always aware of the nepotism. I didn't feel respect on the set. I didn't focus on what I was doing. I focused on, 'These people think I'm only here for one reason, because of my dad.' I didn't like it.
Troian: Everybody's really been positive about the show, and I'm really grateful and want people to enjoy it. But I don't know how much I'm really into celebrating. What you have to love is the work, not the success.
Troian: (on handling criticism) My dad told me that night after seeing me in The Crucible that I had done a great job, but the next day one of my favorite teachers told me I had ruined the play for her - that in so many ways I could have gone further. So it's like, I can't attach myself to a negative position, or a positive position. I just take them in.