Season 1
Season 1 | Number of Episodes: 22
Premiere Airdate	June 8, 2010
Finale Airdate	March 21, 2011
Slogan	Never trust a pretty girl with an ugly secret.
Season Guide
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Rosewood is a perfect little town with a great many secrets, the ugliest of which belong to the four prettiest girls in town: Aria, Spencer, Hanna and Emily, friends whose darkest secrets are about to unravel. One year ago, Alison, the Queen Bee of the group, disappeared, and the girls stopped being each other's BFFs. Now they start getting messages from "A" saying things only Alison would know. "A" spills their secrets, watches their every move and makes some very scary threats. The girls reunite to discover what's going on: Is Alison back? Or is "A" someone else altogether? Share the mystery with the complete Season One of the enthralling new series based upon the New York Times bestselling series by Sara Shepard. You'll be hooked!

Storylines

Spencer Hastings

Spencer is a perfectionist and straight-A student whose pressure to stand out in her overachieving family leaves her feeling alone...until she finds understanding in the unlikeliest of places - the arms of her sister's fiancé.

Emily Fields

Emily, an athlete trying to sort out her place in the world, finds herself drawn to her new neighbor, Maya(Lawson), a free spirit who recently moved into Alison's old house across the street.

Hanna Marin

Once-chubby Hanna has transformed herself into the current "It girl," but still battles the urge to binge. Shoplifting gives her a less-fattening thrill, but when she gets caught, the charges are dismissed only because her mother, Ashley(Leighton), takes matters into her own hands, eager to keep her own reputation and the image of her daughter untarnished.

Aria Montgomery

Artsy and electric Aria has just returned to town from a year in Europe and, while she tries to deny feeling hurt over her father Byron's (Lowe) indiscretion with one of his ex-students at the college, and keep her mom, Ella (Combs), from finding out, she can't ignore the intense chemistry with Ezra Fitz (Harding) - Aria's English teacher.

Cast

Main Cast

• Troian Bellisario as Spencer Hastings – 22/22
• Ashley Benson as Hanna Marin – 22/22
• Lucy Hale as Aria Montgomery – 22/22
• Shay Mitchell as Emily Fields – 22/22
• Chad Lowe as Byron Montgomery – 18/22
• Ian Harding as Ezra Fitz – 17/22
• Laura Leighton as Ashley Marin – 17/22
• Holly Marie Combs as Ella Montgomery – 16/22
• Sasha Pieterse as Alison DiLaurentis – 15/22
• Bianca Lawson as Maya St. Germain – 10/22

Recurring/Guest Cast

• Keegan Allen as Toby Cavanaugh – 16/22
• Tammin Sursok as Jenna Marshall – 15/22
• Ryan Merriman as Ian Thomas – 12/22
• Janel Parrish as Mona Vanderwaal - 11/22
• Torrey DeVitto as Melissa Hastings – 11/22
• Nia Peeples as Pam Fields – 9/22
• Tyler Blackburn as Caleb Rivers – 9/22
• Brant Daugherty as Noel Kahn – 8/22
• Brendan Robinson as Lucas Gottesman – 8/22
• Chuck Hittinger as Sean Ackard – 8/22
• Lesley Fera as Veronica Hastings – 7/22
• Cody Allen Christian as Mike Montgomery – 6/22
• Lindsey Shaw as Paige McCullers – 6/22
• Bryce Johnson as Darren Wilden – 5/22
• Diego Boneta as Alexander Santiago – 5/22
• Julian Morris as Wren Kingston – 4/22
• Nolan North as Peter Hastings – 4/22
• Amanda Schull as Meredith Sorenson – 3/22
• Jill Holden as Mrs. Welch – 3/22
• Eric Steinberg as Wayne Fields – 3/22
• Yani Gellman as Garrett Reynolds – 3/22
• Jim Titus (III) as Barry Maple – 3/22
• Steven Krueger as Ben Coogan – 2/22
• Keith Pillow as Mr. Sheldrake – 2/22
• Carlson Young as Amber Victorino – 2/22
• Parker Bagley as Jason DiLaurentis – 2/22
• April Grace as Agent Cooper – 2/22
• Paula Newsome as Coach Fulton – 2/22
• Josh Clark as Detective Breyer – 2/22
• Anne Marie DeLuise as Jessica DiLaurentis – 1/22
• Roark Critchlow as Tom Marin – 1/22
• Heather Mazur as Isabel Randall – 1/22
• Natalie Floyd as Kate Randall – 1/22
• Patrick J. Adams as Hardy – 1/22
• Sara Shepard as Miss Shepard – 1/22
• Samantha Cutaran as Naomi Zeigler – 1/22
• Rya Meyers as Riley Wolfe – 1/22
• Helen Slayton-Hughes as Mrs. Potter – 1/22
• Alona Tal as Simone – 1/22
• Bety Le as Bridget Wu – 1/22
• Connor Trinneer as Nick McCullers – 1/22
• Daniel Travis (II) as James Leland – 1/22
• Claire Holt as Samara Cook – 1/22
• Paloma Guzmán as Jackie Molina – 1/22
• Paula Cale as Mrs. Ackard – 1/22
• Tilky Jones as Logan Reed – 1/22

See Also: Character Appearances

Episodes

Image	Title	Original Airdate	No. in series	No. in season
	Popular In Life and Death	June 8, 2010	01	1.01
	Four 16-year-old girls believe their secrets are safe forever after their friend mysteriously vanishes. But the truth may be only one text away.
	The Jenna Thing	June 15, 2010	02	1.02
	With the return of Jenna Marshall to Rosewood, the girls must face an unpleasant past as questions arise about Alison's death.
	To Kill a Mocking Girl	June 22, 2010	03	1.03
	Old and new relationships are examined as the girls try to pay tribute to Alison's memory. But with "A" taunting them every step of the way, can the girls leave the past behind?
	Can You Hear Me Now?	June 29, 2010	04	1.04
	The girls take matters into their own hands and try to put a stop to "A," but the girls' problems are far from over.
	Reality Bites Me	July 6, 2010	05	1.05
	Trying to ignore "A" backfired for the girls and now they must pay the penalty. Meanwhile, the girls must also deal with typical teenage drama -- the boy kind.
	There's No Place Like Homecoming	July 13, 2010	06	1.06
	The homecoming dance is supposed to be a time for fun and making memories, but for four pretty little liars, disturbing secrets threaten to ruin their perfect night.
	The Homecoming Hangover	July 20, 2010	07	1.07
	After the homecoming dance, the girls try to sort out the devastation. Plus, "A" isn't the only one sending Aria texts.
	Please, Do Talk About Me When I'm Gone	July 27, 2010	08	1.08
	Last-minute preparations for Alison's memorial get derailed when her brother, Jason DiLaurentis arrives back in Rosewood.
	The Perfect Storm	August 3, 2010	09	1.09
	The girls are trapped at school as a bad storm brews, and tensions run high. Plus, Byron leans on Ashley for advice on parenting as his relationship with Ella takes a bad turn.
	Keep Your Friends Close	August 10, 2010	10	1.10
	The girls go "glamping" as A's threats escalate and the FBI arrives in Rosewood. But not even a mani/pedi can lift the girls' spirits when the evening takes a dangerous turn.
	Moments Later	January 3, 2011	11	1.11
	Moments after Hanna is hit by a car, the girls' world is turned upside down. Meanwhile, the mysterious messages from "A" continue.
	Salt Meets Wound	January 10, 2011	12	1.12
	As the girls try their best to support Hanna as she returns from the hospital, everyone has their own "surprises" to deal with. Plus, Aria and Ezra suspect someone is on to them.
	Know Your Frenemies	January 17, 2011	13	1.13
	Aria and Ezra feel as if there may be no way out, Emily deals with opposition to her love life and "A" has Hanna jumping through old hoops. The girls get a little unexpected help.
	Careful What U Wish 4	January 24, 2011	14	1.14
	The school dance-a-thon might give the girls more than sore feet. Plus, Aria's old babysitter, Simone, comes to visit, and sets her sights on Ezra.
	If At First You Don't Succeed, Lie, Lie Again	January 31, 2011	15	1.15
	Emily deals with a jealous teammate. Aria and Ezra plan their first date out in the open. Spencer turns to Ali's brother, Jason, for information.
	Je Suis une Amie	February 7, 2011	16	1.16
	At a crucial swim meet for the Rosewood Sharks, Emily and Paige are pitted against each other. Plus, Caleb calls in his favor with a guilty Hanna.
	The New Normal	February 14, 2011	17	1.17
	It's parent-teacher conferences and one little liar's father sits face to face with the love of her life. Better believe that "A" has something to say about it.
	The Badass Seed	February 21, 2011	18	1.18
	As tensions rise, the girls ponder the true nature of evil. Plus, Aria views the school play as an opportunity to get closer to Ezra, but will her plan backfire?
	A Person of Interest	February 28, 2011	19	1.19
	After a shocking revelation from the police, it looks like the four little liars could be crying wolf. With everything pointing to Ian, could the girls be wrong?
	Someone to Watch Over Me	March 7, 2011	20	1.20
	As the heat is turned up on suspicions surrounding Spencer, the girls must come to the harsh realization that they aren't the only ones hiding secrets in Rosewood.
	Monsters in the End	March 14, 2011	21	1.21
	Everyone has something to hide. For Aria, Emily, Hanna and Spencer, keeping things hidden is second nature, but having to live with those secrets can become a big burden.
	For Whom the Bell Tolls	March 21, 2011	22	1.22
	The girls go to an unlikely source for help to put an end to "A" and the mystery surrounding their friend. Can they really stop "A" once and for all?

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