Troian Avery Bellisario (born October 28, 1985) is an American actress. She currently stars as Spencer Hastings in the ABC Family series Pretty Little Liars.

 ··Career

Bellisario made her acting debut in the 1988 film Last Rites at the age of three. From 1990 to 2007, she guest starred on Quantum Leap, Tequila and Bonetti, JAG, First Monday and NCIS, television series that were produced by her father Donald Bellisario. In 1998, she co-starred with Mary-Kate and Ashley Olsen in the film Billboard Dad. Beginning in 2006, Bellisario began appearing in a number of independent short films namely, Unspoken, Archer House and Intersect. In November 2009, Bellisario was cast as Spencer Hastings in the TV series Pretty Little Liars based on the book series of the same name by Sara Shepard.

 ··Spencer Hastings

Spencer Hastings is an extremely wealthy, smart, athletic and competitive girl. She is an overachiever, running for valedictorian at school. She is on the field hockey team and plays tennis at a country club. She lives with her father, mother, and what she calls a perfect older sister, Melissa. Spencer is jealous because Melissa is always being praised by her parents, leaving Spencer in her shadow. This leads to a huge rivalry between the two. Spencer had been best friends with Alison DiLaurentis, although they sometimes had conflicts. She had been the only one who could ever stand up to Alison (which shows her spunky attitude), and they had gotten into huge fights though always made up, except for the last time they spoke. During the summer that she disappeared, Alison had told Spencer she had a secret boyfriend, but wouldn't confess who. Spencer has always been known for her logical thinking and bravery during this extremely enduring mystery.